There are at least 2 reasons why dandruff can happen after a semi-permanent straightening.
1.The product that adheres to the hair can also adhere to the scalp. As the scalp skin cells shed, the product sheds off as well, creating large flakes. It is fairly impossible to keep every speck of product off the scalp, so the product that ends up on the scalp gets cooked on during the flatironing.
2.The semi-permanent straightening product can upset some people's skin and start them on a path of flakiness that can last months. Not sure why.
Either way, the quickest way to resolve this is:
1. Prior to shampooing, with the hair totally dry, exfoliate the scalp using a scratchy comb, brush or whatever works. Scrub the skin, lift up the flakes, then shampoo and condition as usual. You might need to exfoliate the scalp prior to the first several shampoos as the skin can take a week or so to shed and release the stuck on product.
2. Use a dandruff shampoo that does not contain Sodium Chloride. After exfoliation, shampoo with the dandruff shampoo of your choice. Really work it into the scalp and then let it sit for several minutes. Rinse and condition as usual.
Over the years, certain questions get asked multiple times. The "need to know" info is posted on the primary web sight, www.unsprung.net , but the rest of it is posted here.
#4- Is Semi-Permanent Straightening more toxic than Permanent? Why do you wear a respirator?
I started wearing a respirator, long before I started doing SP-S, at the recommendation of my E.N.T.. I had irritation in my  
throat and sinuses from breathing in the ammonia gas that comes off of  
Permanent Straightening. The following describes the toxicity of ammonia
  gas:
"What is ammonia’s mechanism of action?
Ammonia interacts immediately upon contact with available moisture in the skin, eyes, oral
cavity, respiratory tract, and particularly mucous surfaces to form the very caustic ammonium
hydroxide. Ammonium hydroxide causes the necrosis of tissues through disruption of cell
membrane lipids (saponification) leading to cellular destruction. As cell proteins break down,
water is extracted, resulting in an inflammatory response that causes further damage.
What are the immediate health effects of ammonia exposure?
Inhalation: Ammonia is irritating and corrosive. Exposure to high concentrations of ammonia
in air causes immediate burning of the nose, throat and respiratory tract. This can cause
bronchiolar and alveolar edema, and airway destruction resulting in respiratory distress or
failure. Inhalation of lower concentrations can cause coughing, and nose and throat irritation.
Ammonia's odor provides adequate early warning of its presence, but ammonia also causes
olfactory fatigue or adaptation, reducing awareness of one's prolonged exposure at low
concentrations."
The  doctor considered my irritation quite severe. At the time, I was 
doing  @8-10 hours of permanent straightening(PS) per day, and breathing in 
ammonia  gas the entire time. SO! In comparison to that, SP-S don't feel toxic at all. :) There is formaldehyde gas that 
comes off  during the flat ironing part, but unless it blows directly 
into the  face, it is not detectable. Whereas, the Ammonia gas that 
comes off  during PS is very very noticeable and 
would  affect everyone on our floor if we didn't ventilate. When SP-S is done without ventilation, the fumes don't make it into  the hallway past the door.
The bottom line is that both are toxic to  breath in. And, some people 
are going to be really sensitive to the  fumes of both, and some people 
are not going to be sensitive to either. I  happen to be a very 
sensitive person to fumes, so the only way I could  continue to work 
with either method is with the use of a respirator.  Many hairdressers 
quit the business because they can't tolerate the  fumes or the handling
 of product. And, many clients avoid the  straightening services because
 they don't want the exposure. Wearing a  respirator solves that problem
 for both stylists and clients.
The  unique thing about SP-S is that it's new and there
 are  no long term affects known to hairdressers, yet. Also, the 
unfortunate  thing is that some companies are marketing the product as 
"all natural",  insinuating that it's non-toxic, which is totally 
deceptive. Therefore,  hairdressers and clients incorrectly assume that a
 stylist wearing a  respirator must be dealing with a "bad, toxic, under
 the table" version  of solution. This couldn't be 
further from the truth. I wear a respirator because I'm 
dealing with gasses of  known toxicity, and unknown long term affect, on
 a daily basis. It would  be just plain stupid to put myself in an 
environment with ANY potential  exposure on a daily basis, and not 
protect myself. I've done a couple SP-S treatments without the 
respirator, and it doesn't affect me  negatively like the permanent, but
 it would be foolish to think that  means it's not going to ever affect 
me. If I had to choose which process  was the most toxic, I would pick 
the permanent straightening since I  can feel the negative affects 
immediately. Also, this might be too much  info, but if I do a permanent
 straightening without gloves and  respirator, I can smell ammonia the 
next morning in my urine. Very much  like the asparagus phenomena. That 
tells me that the ammonia is getting  in my system somehow, going 
through it, and then coming out. That is  scary. I have never noticed 
that with SP-S, but that  certainly doesn't vouch for 
it's safety.
I wear a gas mask with an attached particle filter,  during SP-S because during 
the flat ironing, a smoke  comes off that includes fine little particles
 of polymer amongst other  things. This is very irritating to breath in.
 This particulate clogs up the fans, window screens, and the intake of the blowdryers. We don't  want it clogging up our lungs.
#5-Does Keratin really straighten hair?
Keratin does not straighten the hair. Keratin is not a new found ingredient, and has been available, along with all the other types of proteins, for many years. There are plenty of excellent protein treatments out there(Noiraude Pro, Nigelle DS, PPT heat polymerizing protein treatments...) that build up the hair, but they've never had straightening abilities. And if you overuse some proteins, the hair gets crunchy and dry, and even cause breakage from the hair getting so brittle. A good protein treatment lasts @ a month or two,and over time can really protect the hair and keep it in optimal health. Now imagine taking that protein treatment and adding a catalyst that would give straightness..... now we're talking SP-S as we know them today.
When it comes to the actual purpose of keratin in current SP-S formulas, it might very well add a strengthening or  
fortifying component, just like a standard protein treatment. Removing  
keratin from SP-S might take away the strengthening affect, and whatever
  improved texture it might give to the hair over time. However, no  
matter what, the keratin is not responsible for the actual straightening
  effect. 
Pretend that  all SP-S formulas are like various brownie 
recipes. You can  add extra goodies to a basic brownie recipe(nuts, 
frosting,  marshmellows....), but it's not required. With SP-S the 
various  companies add their "flavor" to the basic working formula, but 
they're  all considered "SP-S" because the chemical reaction is basically
 the  same. They might add things for shine, 
smell,  weight, softness, etc. And some SP-S really do feel better in the
 hair.  Some do not interact with artificial color as much.....all based on the way they put the ingredients 
together.  They all tweak the amount of the various 
working-ingredients(percentage
Below is a list of ingredients of a brand of SP-S we've tried:
water,  keratin, propylene glycol, cetearyl alcohol, cetrimonium 
chloride,  formaldehyde, amodimethicone, cyclopentasiloxane & 
dimethicone,  fragrance.
In general, the formalin and the Glycol-related-ingredient get together
 to create plastic/polymer which  temporarily fixes the hair's bonds in 
place. Both the Formalin and Glycol have many chemical siblings that 
product plastics and polymers,  such as Nylon, Teflon, Permanently 
Pressed Clothing, etc...Keratin is  the 2nd ingredient from the top, but
 it is NOT what straightens the  hair. Water is the first ingredient, 
and it does not straighten the hair  either....Realize that hair itself 
is made of keratin, and it does not straighten itself....
A quick Wikipedia search sums up the overall concept :
http://en.wikipedia.org/wiki/F
http://en.wikipedia.org/wiki/P
http://en.wikipedia.org/wiki/P
Here is another interesting websight on plastics:
http://www.plasticsindustry.co
#6- What are the differences between Keratin, Brazilian straightening and Semi-Permanent Straightening(SP-S)?
They're  all the same. Just different names.
All of the Keratin treatments, Brazilian Treatments, SP-S etc, follow the general format given below:
1.Treatment solution is applied to clarified and towel dried/or blown dry hair.
2.let to sit from 0-60 minutes to absorb
3.blown dry completely
4.flat ironed at @350-450 degrees, or blow out with a blow dryer and round brush for shorter lasting results.
5.not neutralized.
6.Smooth out frizz and curl to various degrees.
7.contains some precursor ingredient to a polymer
8.cost @$250-360 wholesale for @32-33oz bottle of solution.
9. 0-4 day waiting period before 1st wash, after treatment.
10.Treatment takes @ 1.5-5 hours depending on thickness, length, dry timing, number of stylists working on a client.
11.Going  price is @150-450, which completely depends on stylist mark 
up. The  various solutions cost about $8-11 per oz. and 1 treatment will  use @1-4 oz/client depending on hair.
12.All companies we've seen so far say to only use products that are sodium chloride free, or sulfate free.
13.These  treatments do not break bonds within the hair, they over ride 
the  bonds. The effects are usually not permanent and usually wear off in 1-4 
months  depending on which product is used. The coating adds shine in 
general.
14.These  treatments can be done over all other chemical treatments 
including  Sodium Hydroxide products, Thio products, and color services.
15.These products hit the market in @2007, in America.
If  the product you're looking to use, generally follows the above  
guidelines, then we lump them into the Keratin/SP-S category. The reason for 
 the term "Brazilian" is because the technology of over riding bonds  
instead of breaking them, seems to have been made popular in Brazil. 
#9- Tips for the waiting period
1.I
  have found that SP-S is definitely NOT usually 
impressionable as long as the hair does not get wet. I've worn my hair up in  
clips the entire waiting period, without a problem. HOWEVER, this will  
not apply to everyone, and you run the risk of impressions if you do  
this.  
2.At night, I resort to using a large silky scarf, Beyonce  style. I comb the hair
 down smooth and tie the scarf over the top. I  find that if I use a 
cotton scarf, that helps wick some oil off the  scalp. This keeps the hair smoother during sleep and it keeps it out of my face.
3.I also use blotting papers for wicking oil off the scalp  and 
hairline. Since the hair is coated, the natural oil is not absorbed  at 
all into the hair like it normally would be. Instead, it slides down  
the hairshaft.
4.As many times during the day as possible, I  warm up my hair with the 
blowdryer and brush through it, detangling it  and transferring some of 
the oil down the hair. This also helps to  removed hair that has shedded
 out, but is still stuck in the hair.
5. I  have not found any solution for the "sprouts". Even after wearing a
  scarf for hours, the sprouts come back. After the first couple of  
shampoos, they are sometimes still there! People usually think that  
these are evidence of breakage. They 99% of the time, are not. The  
reason "sprouts" happen is because SP-S gives a nice strong coating to
  all the hairs on the head. Every time a hair sheds, one starts 
growing.  There are little hairs, of all lengths, constantly growing 
out. The SP-S coating keeps the shorter hairs standing up because they 
are simply too  lightweight to tip over. Once the hairs reach @ 2-3 
inches long, they  are usually heavy enough to tip over. So, all the 
hairs from 0-@2 inches  are the only ones standing up. Not a problem at 
all.
#8- What is your true opinion on the Semi-Permanent technology?
Here's my schpeel,
Seriously,  I LOVE it. I switched from Japanese straightening my hair at
 Shige  Kosuda's salon in Manhattan, to Semi-permanent Straightening(SP-S) in Spring of 
2007. The protection that SP-S gives  is completely new in the world of hair. No other conditioner,
  treatment, protein pack, etc.....actually laminates the hair like a SP-S. NOTHING. We've carried all the really nice at-home  
Japanese treatments, and have done the various in-salon treatments for  
clients over the years. And, we really loved them.....up until now ;).  
As far as I'm concerned, SP-S replaces and improves upon ANY  
other treatment that can be done on the hair to improve health and chemically straighten simultaneously.  I took very very good care of my  
japanese straightened hair, and still would get split ends when my hair 
 reached collar bone length, simply because Permanent straightening is a
  bond breaking procedure that weakens the hair, no matter how well it's 
 done. Whereas SP-S is a laminating procedure. All the curl bonds are still strong and connected after SP-S, because they're just overridden, not broken. Forget for a second
  that SP-S also smooths down the fuzzies, this treatment is perfect  
for ANYONE who has trouble growing healthy hair. Now, no amount of SP-S coating will protect the hair from frequent flatironing damage. People, 
 you need to stop the flatironing if you want healthy hair, period. But 
 for those of you who don't flatiron and still get damage, like myself, 
 it can be pretty frustrating because you know you're doing everything  
you can to pamper your hair. I'm telling you, give SP-S a year(3-4  
treatments) and you'll be seeing a definite, noticeable difference.  
You'll feel a difference after one treatment, but the reason I say give 
 it year is because if your hair is already fried, it's fried. The  
coating will make it feel better, but ultimately the hair is fried.  
Putting the coating on it will keep it from getting worse off, but if 
 the ends are already split, there's no repairing them, so you need to trim off the splits. But all the hair following that, will
 be  preserved, and multiple treatments really do accumulate up 
to  @3, and fortify the hair amazingly well. In a year, 6 inches of new 
hair  will have grown, and hopefully, 6 inches of old hair have been cut
 off  potentially, so you will really feel like you have a new head of 
hair. I  haven't had one client who didn't notice a difference in the 
health of  their hair after SP-S. There is definitely a
 place for  really nice shampoos and conditioners, but none of them really fortify or
 preserve  the hair beyond several shampoos and they can cost ultimately
 way more  money over a 4 month period than SP-S, 
depending on what  you're buying. 
What else can I say about it......I'm  shocked that every single salon 
is not doing this process. It's such a  benefit for the client's hair. 
Not to be overly dramatic, but with all  the other toxic chemical 
services happening in salons(acrylic nails,  bleach fumes, ammonia 
fumes, aerosol sprays in the air), it's ridiculous  to avoid this one. 
#7- I was told that Coppola's Keratin Complex is the only truly semi-permanent straightening system
After
  attending the Oct.26th, 2009 Coppola Keratin Complex class at 
UnTangled  Salon, we realized why stylists are telling potential clients
 that all  other Keratin Treatment's(SP-S) are permanent, except the 
Coppola.(We attended  the class only because we were told the new clear 
formula would be  demonstrated...which it wasn't. Very disappointing.)
During the  class, the instructor actually said that all other forms of  SP-S go permanently straight, except 
the  Coppola. I asked how she came up with that idea, and she said 
that's  what she was taught. This same trainer said that she has trained
  everyone currently using the Coppola Keratin Complex here in Portland,
  Oregon, aside from a small window of time. This means that most 
stylists  here will have incorrect information.
Here is the real trouble. Any  stylist or client who has NOT done 
research might actually believe  something like,"all other SP-S systems are 
permanent." Eventually, they will  realize their error in thinking, but 
for stylists, it might be too late.  Because of the internet, clients 
today can be very informed and will loose  trust in a stylist who turns out to
 be incorrect. Unfortunately, we've  gotten several clients who 
intended to go to other salons, but when they  talked with the stylist 
performing the procedure, they realized the  stylist knew less about the
 world of SP-S than they did.
So, if you're  a stylist that has ONLY had training or experience in the
 Coppola  Keratin Complex, or you've only been trained by 1 brand, you're in need of more education. It is 
foolish to  automatically believe everything that is told to you by a 
person selling  you a product. Especially when that person has had no 
experience with  other brands and knows nothing outside the training 
given to them by the  company they work for. I have a hard time 
believing this is still  possible in a world with so much access information.            
#10-Why do you not advise to avoid ponytails, barrettes, ear tucks, etc...during the wait period?
Here's the deal. All manufacturers say not to style the hair in any way before the first wash, after the salon treatment process. However, over the years, clients would confess that they had, in fact, worn ponytails, clips, headbands, etc, and no mark was left. So, a contest was started which would reward a client with a free year of straightening, if they could leave a mark in their hair by any means, other than chemistry(sweat, rain, product...) Clients, in great effort to leave marks, did corn rows, micro braids, ponytails, bobby pins, headbands..... everything they could think of. Even after a year or so of all this craziness, not a single mark was ever left. Most of the mark-making-attempts were photographed and emailed to Global Keratin(The brand of SP-S we use) as proof that marks were basically impossible to leave in the hair. When we asked Global Keratin, "why do you advise clients not to wear ponytails, tuck it behind the ear, etc...", they said that ultimately, we(the stylists) are the experts and could advise the clients however we saw fit. It's clear, however, that when a stylist recommends something contrary to what the manufacturer says, it's the stylist that will look uninformed, not the manufacturer. This point was brought up to them, to which they replied, "Your client should trust that you are doing what's right for them..."The rep at Global Keratin could not say why the brand ever decided on the "no-ponytail/bobby pin/etc" rule.
Humm..... so basically, I've never seen a mark left, other than if someone got their hair wet, or put product in the hair during the wait period. I personally wear a head band, and ponytail the entire duration of the wait period. Most clients do as well.
#11-Do heat protectants really protect hair from damage caused by thermal styling tools?
Really, people ask this all the time. I'm frustrated with all the individuals promoting products that claim to actually prevent heat damage. These products include leave-in conditioners, serums, sprays and even flat irons themselves.
Heat from thermal tools is what straightens or curls hair. The hotter the thermal tool is, usually the faster it works. If a product stopped heat from reaching the hair(thermally protecting the hair), the hair would not straighten or curl. If you could straighten your hair without heat, you wouldn’t have to turn the thermal tool on..... Heat is what styles the hair and heat is what damages the hair. And all of the thermal “protectants” allow every bit of that heat to affect the hair. You get the point.
Most
  products marketed for the use with thermal tools contains ingredients that
 essentially melt a temporary plastic coating onto the hair's surface. If you look at the ingredients, you'll find acrylics, polymers, vinyls, nylons and other plastics.  The coating deflects humidity and helps keep the hair smoother longer. So the term, "thermal protectant" really translates to "thermally applied, humidity protectant". It absolutely does not mean "protects hair from thermal styling damage". EVER.
Hair on the head is nothing more than dead  organic matter.  It only 
accumulates damage. It is in a constant state  of decay. It can not be 
healed, it does not heal itself, and it never  returns to "virgin". Dead
 materials can be coated with various things  such as oils, 
preservatives, plastics and many other chemicals in order  to give them 
longevity. The SP-S service fortifies the hair, for example.  These 
coating eventually disintegrate. As far as hair goes, it starts  off 
with it's own natural coating, the cuticle....kind of like the bark  on a
 tree. Eventually, given enough exposure, the cuticle flakes off.  So, 
one of the things that causes damage, to dead fibers, is heat.  Usually,
 the greater the heat exposure, the worse the damage. Companies  sell 
you the tools that create the damage and then sell you the  
“protectants” to supposedly protect you from that damage. The products 
 might give the hair a nice smooth feeling, or make it lay flatter, or  
protect it from humidity....but none of those products protect your hair
  from the damage that extreme heat causes. Most of you already realize 
 that because maybe you’ve noticed how dried out your hair feels if you 
 don’t apply any of those products one day, and let it airdry.....nice, 
 nasty dryness.....you can’t wait to flatiron in more product to make it
  feel better....I'd like to challenge anyone who believes in such  
protective products to do a simple test:
Dip your finger into  whatever product you believe protects hair from 
heat. Let  it sit a while. Then, when you're 
good and ready, flatiron  your finger.
What just happened? You just burned the crap out of your  finger because the 
product did not protect your finger at all from the  heat. In addition, 
you probably have some half baked layer of goo  coating your finger. 
But, look on the bright side, your finger is alive  and will heal 
itself. Your hair does not have that capability, and is  only worse off 
each time it is flatironed. What confuses the matter is  the existence 
of people who seem to have healthy hair regardless of how  many times 
they flatiron. They may truly believe it's the "heat  protection" they 
use. In reality, it's a fact that some hair is just  naturally more 
resistant to outside influences because the cuticle is is  more like a 
brick wall than T1-11. They might be able to flatiron for  years before 
damage begins to show. Lucky them. Most people however,  will have 
damaged hair only after several thermal stylings at 450  degrees, 
especially if their hair is not virgin. If you have split ends,  you can
 know without a doubt that you have managed to completely  degrade your 
cuticle and your hair's insides have exploded open. Lovely.
So  about the actual flatirons....If you boiled water in a glass pan, or
  cast iron, or copper, or ceramic, the water always boils at the same  
temperature. It doesn’t matter what pan the heat traveled through to get
  to the water. Likewise, no matter what material you flatiron your hair
  with, heat is still heat! Extreme heat causes damage, no matter what. 
As  far as some flatirons “sealing in moisture”....that is just wrong. 
If  the flatiron is at/above 212 degrees, the water will turn to steam 
and  leave the hair. Most people set their flatirons at 300-400 degrees,
 so  you can count on the fact that there will be NO water left in the 
hair  after a flatironing. If the flatiron is not hot enough, moisture 
will  still be in the hair until it evaporates naturally. If there’s 
moisture  in the hair, curly hair will frizz up. Or if the hair 
is  straight, and there’s still moisture in it, it won’t hold a curl. 
I’m  not even sure how it became trendy to "lock" moisture in hair to 
begin  with. It’s not a lack of moisture that differentiates virgin hair
 from  damaged hair, it’s a lack of intact cuticle and internal bonds. 
The Yuko  websight has some interesting information on moisture in hair.
  Basically, keeping hair moist for too long puts cracks in the cuticle.
  Similar to chipped paint on an outdoor wood fence. If the underlying  
wood gets wet and swells, it will crack the paint coating. They  
recommend drying the hair as soon as possible to reduce the swelling of 
 the hair, and the potential cracking of the cuticle.......So, you could
  say that they are not in favor of sealing in too much moisture.
#12-My hair is fried. Will a Semi-Permanent straightening help?
The protective coating SP-S gives is effective for any kind of hair. If you are a person that piles on the leave-in treatments and serums in an attempt to improve the look of your hair, then you'll benefit from SP-S. There is no product out there that does a longer lasting, more effective job at improving the look of hair. SP-S doesn't fix split ends, but the coating prevents them from getting worse and prevents more from happening as long as you keep up with the coating. My personal recommendation is getting SP-S every 1-2 months if the hair is severly split and you are wanting to grow the hair out. After 2 or 3, start coming in every 3-4 months for maintenance.
Having said that, if your hair is so far damaged that it can not take at least 400 degrees of heat, then you are probably out of luck. It takes at least 380-400 degrees to set a Semi-Permanent straightening.
#13-Why does the cost vary so much for a Semi-Permanent Straightening treatment?
As
  far as semi-permanent straightening goes, UnSprung
  was the first salon in Portland to offer this service, March of 2007. 
  The same calculation used for pricing other services was used to 
determine  the price of semi-permanent straightening.  Fast forward to 
now, it's  purely coincidence that the price is the price is still on the lower side. That was  not the plan, nor does it reflect any intention to 
undercut other  salons, since there were no local salons to undercut in 
2007 when the pricing structure was set. Other  local salons have simply priced themselves higher. It is a 
unique  predicament. 
In general, the going rate for any  kind of straightening in Portland is
 around $100- $200 per hour. This  price reflects overhead costs and 
personal stylist mark up. At UnSprung, the rate is $80/hour. The overhead is probably a little less than most, and the personal stylist mark up is as well.
As far as  the cost of actual Semi-Permanent Straightening solutions goes, they 
range from  $250-$380,  per @32oz., which makes that @$8-$12 per ounce. 
 The over  all cost of solution has very little to do with the huge 
difference in  cost between salons, no matter what brand is used.
#14- Why does your procedure and aftercare instructions differ from my previous stylist's?
Every stylist develops their own technique on most services in the salon. It doesn't necessarily mean different chemicals are used. Chemical services usually come with a "how-to" instructional, but those are basic guidelines that can usually be tweaked in order to customize the service. This goes for color, hair cutting, styling product application, perms, chemical straightening...etc
Below is a  list of things I do, that are NOT a part of any companies "how-to"
  instructions, and therefore can confuse clients/stylists:
1.I wear a  respirator. Not one company instructs a stylist to wear a 
respirator. 
2.I let the product  sit for about 20 minutes before blowdrying.
3.I encourage the use of a respirator for the client. This is not recommended by any brand. It is done as a courtesy.
4.Clients  with long hair are put under the dryer while I simotaniously 
blowdry  the ends, in order to dry the hair faster. This might cut 
drying time in  half, which saves time and keeps cost down. No company 
recommends  putting the client under the dryer.
5.Ponytails, headbands, hats  etc.... are typically forbidden by every 
company, before the first wash.  However, we've found that absolutely 
none of those things has left an  impression in the hair, with any brand
 we've tried. All we recommend is  that the client smooth their before 
bed, and upon waking, and avoid all moisture and products.
6. A selling point for all  companies is that color can be done before a SP-S, on the  same day. This is true. No damage will occur.
 However, we've seen, a  sometimes dramatic, difference in how a color 
might change up, if it's  done the same day VS. a week before SP-S. If a
 client waits a week  between color and SP-S, that seems to keep some
 color from lifting or  going too brassy. Sometimes the week wait makes 
no difference, but most  of the time, it makes a noticeable difference.
7. All companies  claim to be the best, and all companies only recommend 
their own at-home  hair care products. We have tried most of the brand 
specific hair care  products and have found that they don't really make a
 difference, or  extend the life of SP-S. Therefore, we 
don't sell them.  This makes people think that we are using some off 
brand that does not  have their own hair care products, which is 
incorrect.
There are probably more items of confusion. But, I'm sure you get the drift ;)
#15- Explain accumulation.
In general, each SP-S treatment adds a layer of laminate to the cuticle, smoothing it out a little more each time, up until about the 3rd-4th treatment. At that point, the hair is probably as straight and long lasting as it will ever get. Some hair(mine, for example) goes really straight with one treatment. Other clients start really loving their hair only after 3-4 treatments. I've got clients who are mostly battling fuzz, who are now able to go every 6 months between treatments because they've had at least 3 treatments.
In most cases, the first SP-S treatment(only 1 layer of laminate) lasts the shortest  amount of time, and 
doesn't go the straightest. As each new layer is added, the effects last longer and go smoother, typically. Sometimes, this is absolutely not true and I've seen a handful of clients who's hair resists taking on any accumulation.
Clients  can affect the amount of accumulation by the timing of their  
treatments.  For more accumulation, SP-S appointments should be scheduled 
 closer together.  For less accumulation, a client needs to let most of 
 the SP-S wear off between appointments. Some clients really don't want  
their hair too straight, so they might schedule their appointments 5-8  
months, or more, apart.
The entire head is done with every SP-S treatment, so the root area will 
always ONLY have one layer.  The ends  could have multiple layers.  
Let's say a client starts getting SP-S.  On  their first appointment, the
 entire head is coated.  So there is one  layer on the hair.  Then, 
after 4 months, the client comes in again.   (There will be @2inches of 
curly new hair at the root with no SP-S, and there will be the rest 
of the hair with a little SP-S still on the  hair from the first 
appointment.)  The entire head is treated again.  That  means that the 
first 2 inches at the scalp now have one layer and the rest  now has two 
layers.  The double layered parts will be  smoother than the
 root area.  So, the next time that client comes in,  the entire head is
 done again.  The first @2 inches of new hair will  have one coating, the 
next 2 inches will have 2 layers, and the rest will  have 3 
layers......etc.  If a person has shoulder length hair, they'll  
probably only have 4-5 coatings at their ends, at most.  People with mid  
back length hair(like mine) will have many many more coatings at the
  ends.
If a client does not want too much accumulation in their ends,  they 
could choose to only do their roots, and not layer over the ends  every 
time.  
Clients  come in sometimes with other brands of SP-S already on their hair
 and  that is no problem for accumulation.  All brands pile on 
top of  each other just fine.
#16- Can Semi-Permanent solution cause damage to hair?
No.
No.
and more NO. 
I can't even tell you the number of times clients have called and claimed their last stylist broke a bunch of their hair during a "keratin treatment", only to find it was actually a permanent straightening system, NOT A SP-S.
Even still, there have been times when a new client did have fried looking highlights or something to that effect, and their last stylist used an actual SP-S system. In this case, the only way damage could occur during a semi-permanent straightening is with the flat iron or rough handling of the hair. BTW, both of these factors can lead to damage of anyone's hair, at any time... not just during a SP-S treatment. Ideally, the SP-S is set at 450 degrees maximum. Hair that is damaged(overly highlighted, overly flatiron, etc) might not be able to handle 450, so the temperature should to be adjusted accordingly. If this is the case, and the iron has to be turned down, it will also shorten the longevity and smoothing capabilities of the treatment. Some stylists don't realize that they need to dial down the iron, hence....fried hair.
#17- Why has the brand, Brazilian Blowout, come under scrutiny? And what about the other chemical toxins in the salon?
It
  started because a stylist found that Brazilian Blowout had marketed 
and  sold them a product that was supposed to be formaldehyde free, and 
it  wasn't. Many stylists chose to use Brazilian Blowout because the 
company  specifically stated that their product was formaldehyde-free, in ALL their  literature, on their websight and in their certification classes. This was found to be grossly false, along with several other claims they made. The false claims led to a huge lawsuit, which they lost. This is 
obviously  bad because stylists used the product assuming it was 
non-toxic to them  and their clients, and safety precautions were not 
taken. Their current original formula has methylene glycol, which is an aldehyde, and DOES gas off formaldehyde. Despite what they say. 
So, clients are left to figure out  what this means to them.  Basically,
 if a SP-S treatment works, it  contains some chemical that is toxic 
on some level, to someone. Even if a  product is truly "formaldehyde 
free", it doesn't mean it contains  nothing toxic. It just means that 
there is some other chemical doing the  work, in place of the 
formaldehyde. That replacement chemical could  very well be worse than 
formaldehyde.  I've tried the Brazilain Blowout  brand and it works 
well, but decided to never switch, simply because they  wouldn't say what
 was replacing the formaldehyde, and therefore, it  would be a huge risk
 to blindly use their product.  Of course, any  company could be lying 
about what their ingredients are, even if they  are listed on the 
bottle, but no other company has outright insisted  that their product 
is completely different and safer than all other  products, like the 
Brazilian Blowout brand has. As a client, you need to  realize that all 
chemical services come with risks to your health.   Some people will be 
very sensitive to certain chemicals, just like some  people are very 
sensitive to peanuts.  You never know which chemical  might set you off.
  Certainly, many clients have endured a great deal of  pain in order to
 be made "beautiful".  Just make sure your services are  done in very 
well ventilated area, and that you have access to a  respirator if 
needed.  The main point of this news regarding Brazilian  Blowout is to 
reiterate the fact that companies will say anything to  sell a product. 
 It is up to the stylist to be smart and choose wisely  who they deal 
with.  The point isn't to stop all toxic services.  If that 
were the case, we'd have to stop doing all chemicals since all  chemical
 services in the salon are toxic to someone.   
Having  said all that, my question is, will all the stylists who stop 
using  Brazilian Blowout because of discovered toxicity, also stop using
 every  other chemical in the salon until it has been analyzed as well? 
Or will  they choose to trust that all the other companies are selling 
something  "wholesome"? Since we're now questioning the Brazilian 
Blowout brand,  what about all the other brands....when was the last 
time a colorist  asked for a list of ingredients of the color products 
they use? How  about questioning whats in the gasses coming off of 
bleach hi-lites? How  many stylists leave the industry every year 
because they can't handle  the collective fumes anymore?.....This 
dialogue is way bigger than some  stylist in Portland Oregon claiming to
 have been duped by a product  company. Hopefully this current focus on 
Brazilian Blowout, will lead to  the bigger and more alarming ACTUAL 
issue of stylist and client safety,  and maybe stylists will start 
demanding to know the facts about the  other chemicals that have plagued
 our health for years. The scary thing is that plenty of "known"  carcinogens fill up
 our chemical bottles at the salon and no one bats an  eye.
More on what's been plaguing us:
Hairdressers and  barbers have had higher rates of certain cancers for 
most of the last  century. This is NO NEW NEWS and this started way 
before Keratin Treatments/SP-S came along. The chemicals in hair color, 
perms, nail  products, hair styling products, electronic tools, 
makeup...have been  implicated in everything from simple contact 
dermatitis to full on  cancer. Hairdressers have been dealing with back 
pains, varicose veins,  carpal tunnel, asthma, eczema, contact 
dermatitis, non-lethal allergic  reactions, chemical sensitization, 
latex sensitivity, chronic lung  infections, anaphylactic reactions, 
sinus trouble.....and yes, cancer.   Below are several links for people 
who are surprised to find out that  chemicals used in the salon contain 
known carcinogens:
1. http://mesothelioma.n0winn0fee
2. http://onlinelibrary.wiley.com
3. http://oem.bmj.com/content/67/
4. http://www.ei-resource.org/col
5. http://www.medicalnewstoday.co
6. http://www.asbestos.com/occupa
Link to Formaldehyde: http://en.wikipedia.org/wiki/F
Plenty  of other people across the globe deal with toxic chemicals every
 day,  in all kinds of workplaces. Until hair stylists are willing to 
get  serious about the chemicals they use, their rates of cancer will  
continue to increase as new formulas hit the market that have side  
effects which won't be known for years. Hairdressers don't demand good  
ventilation, and they don't take personal precautions against exposure  
to fumes and chemical contact, for the most part. It's pretty absurd  
that hairdressers are not already wearing respirators during chemical  
services, and it's amazing how insufficient the ventilation is in most  
salons. There are industries in which employees are required to wear  
respirators while handling chemicals LESS toxic than those used in the  
everyday salon. The warning labels on color and perms read just like the
  ones on the SP-S. If the government has to step in to  
protect us from ourselves, salons will start looking more like clean  
rooms.
So, ultimately:
1.The government needs to crack down the the crack pot advertisers and products...
2.The stylists need to stop being so gullible and in denial of the seriousness of their workplace and their health.
3.All chemical services in the salon are potentially toxic.
4.In  order to avoid ill health effects, stylists and clients have the 
choice  to stop doing chemical services, or protect themselves from 
exposure.
#18-Article from WWD. New straightening by Bumble&Bumble and L'Oreal
The salon giants are looking to capitalize on the Brazilian Blowout hair-straightening controversy.
Bumble and bumble, the Estée Lauder Cos. Inc.-owned brand, and L’Oréal Professionnel are both coming out with their own versions of hair-smoothing treatments that are formaldehyde free. The products are aimed at capturing a market that was severely shaken after the hugely popular Brazilian Blowout brand was targeted by government investigations in the fall over health concerns related to its products, which certain labs found can produce traces of formaldehyde. Brazilian Blowout’s probe pushed the market’s other entries into investigations, too.
A number of smaller, independently owned competitors, such as Brazilian Gloss Keratin Smoothing Gloss and Keratin Complex Smoothing Therapy, had previously developed hair-straightening formulas containing methylene glycol, which when heated at a certain temperature is said to produce traces of formaldehyde, like Brazilian Blowout, a brand that became so popular it is commonly used as a term for the service itself.
The Cosmetic Industry Review, an independent panel group, is studying these hair-straightening formulas, and a ruling is expected Sept. 26 or 27 on the question of whether the products are safe. The CIR’s decision was originally scheduled for June. But the submission of a 200-page document attesting to product safety by a Professional Keratin Smoothing Council, a group made up of manufacturers of smoothing treatments, caused CIR to postpone a ruling on the matter for 90 days.
Both Bumble’s and L’Oréal Professionnel’s services, while vastly technologically different from one another — and from the smoothing treatments under question on the market — are intended to offer salons straightening options. And despite the negative attention smoothing treatments have generated, sales of the segment remain “on fire,” according to Peter Lichtenthal, president of Bumble and bumble.
Kerry Bohm, manager, global marketing, said the number of straightening services hitting the market in 2010 was 19, up from three in 2009; overall salon industry services grew 4.5 percent, driven by straightening services, a figure that stands out in an industry that has been in decline.
While no data firm tracks how large the hair-straightening category is, it’s known that Brazilian Blowout, like its competitors, sells its formula by the liter, charging salons about $350 a liter, which ultimately represents about $9,000 in service sales for the salon. In a 12-month period, considering all the salons in the U.S. that offer hair-smoothing treatments, that is estimated to represent hundreds of millions of dollars, if not $1 billion, in service revenue.
In October, Bumble and bumble will launch Concen-straight Pro Treatment to 1,200 of Bumble’s network salons. The launch marks Bumble’s first-ever in-salon treatment, one that is designed to last up to 30 shampoos and can be customized to allow customers to adjust the straightness level of their hair. Since Bumble now sells to retailers as part of its distribution model, at-home straightening kits will also be a component of the rollout, as will a hair care line, Bumble and bumble Straight, consisting of a shampoo, conditioner and leave-in styler.
Bumble and bumble, the Estée Lauder Cos. Inc.-owned brand, and L’Oréal Professionnel are both coming out with their own versions of hair-smoothing treatments that are formaldehyde free. The products are aimed at capturing a market that was severely shaken after the hugely popular Brazilian Blowout brand was targeted by government investigations in the fall over health concerns related to its products, which certain labs found can produce traces of formaldehyde. Brazilian Blowout’s probe pushed the market’s other entries into investigations, too.
A number of smaller, independently owned competitors, such as Brazilian Gloss Keratin Smoothing Gloss and Keratin Complex Smoothing Therapy, had previously developed hair-straightening formulas containing methylene glycol, which when heated at a certain temperature is said to produce traces of formaldehyde, like Brazilian Blowout, a brand that became so popular it is commonly used as a term for the service itself.
The Cosmetic Industry Review, an independent panel group, is studying these hair-straightening formulas, and a ruling is expected Sept. 26 or 27 on the question of whether the products are safe. The CIR’s decision was originally scheduled for June. But the submission of a 200-page document attesting to product safety by a Professional Keratin Smoothing Council, a group made up of manufacturers of smoothing treatments, caused CIR to postpone a ruling on the matter for 90 days.
Both Bumble’s and L’Oréal Professionnel’s services, while vastly technologically different from one another — and from the smoothing treatments under question on the market — are intended to offer salons straightening options. And despite the negative attention smoothing treatments have generated, sales of the segment remain “on fire,” according to Peter Lichtenthal, president of Bumble and bumble.
Kerry Bohm, manager, global marketing, said the number of straightening services hitting the market in 2010 was 19, up from three in 2009; overall salon industry services grew 4.5 percent, driven by straightening services, a figure that stands out in an industry that has been in decline.
While no data firm tracks how large the hair-straightening category is, it’s known that Brazilian Blowout, like its competitors, sells its formula by the liter, charging salons about $350 a liter, which ultimately represents about $9,000 in service sales for the salon. In a 12-month period, considering all the salons in the U.S. that offer hair-smoothing treatments, that is estimated to represent hundreds of millions of dollars, if not $1 billion, in service revenue.
In October, Bumble and bumble will launch Concen-straight Pro Treatment to 1,200 of Bumble’s network salons. The launch marks Bumble’s first-ever in-salon treatment, one that is designed to last up to 30 shampoos and can be customized to allow customers to adjust the straightness level of their hair. Since Bumble now sells to retailers as part of its distribution model, at-home straightening kits will also be a component of the rollout, as will a hair care line, Bumble and bumble Straight, consisting of a shampoo, conditioner and leave-in styler.
L’Oréal
  Professionnel, the largest salon brand globally, has launched a  
chemical straightening service, Xtenso Moisturist, albeit on a much  
smaller scale — to about 12 salons.
Bumble said it recognized the intense desire for straightening treatments and claims to have found room for improvement in the market. Concen-straight Pro’s technology, which is also in the hair care line, consists of a gemstone blend that is designed to vibrate and loosen hair’s inner S-bonds, which give it natural curve, said Fadi Mourad, executive director, product development. Polylysine, an amino acid, aims to refine and realign these S-bonds into smoother shapes. A silicone blend was added to seal and set shape straight for smoothness. A hydrolyzed wheat protein is used to condition hair (and is only in the professional treatment) and is used as a keratin replacement, since keratin is derived from animals. The formula, ultimately, opens the door to customize straightness, so a blow-dryer can build bend, a curling iron can rewind hair and a flatiron can render it straight, said Mourad. The service also aims for increased manageability and overall reduced frizz and flyaways. The hair care collection that was designed to support the service features Bumble’s first sulfate-free shampoo.
While Bumble is blowing out its service to half of its salon base, Laurie Lam, director of marketing, L’Oréal Professionnel USA, said they have chosen to take a preview strategy with Xtenso Moisturist, like it did with ammonia-free INOA.
“We are the number-one salon brand in the world. We could very easily get the sales we [ultimately] want, but it’s really about making sure it is being used safely and efficiently,” Lam said of the preview launch, which is now sold in a number of select salons, including select Gene Juarez salons in Seattle and and Pr & Partners (CT). Lam expects Xtenso Moisturist to be sold in 30 salons by mid-2012, including New York’s Dop Dop and Anthony DiFranco.
Unlike Bumble’s service, Xtenso Moisturist “is much like a chemical straightening service. We don’t compare ourselves with keratin, because keratin is surface treatment, where you don’t chemically change the hair. Xtenso Moisturist is indeed a chemical service.”
Yet, said Lam, it is also customizable.
“You can go for loose waves or slick, straight chopstick hair. It wears out over time,” she said, adding that there are three different formulas available depending on the client’s hair and whether it is untreated virgin, resistant or sensitized hair. A service can take between two and four hours, and all stylists are taught to perform a 15-minute strand test to determine a client’s hair type. The service consists of a shampoo, a mask and then an application of the formula to four separate sections of the head. After a customized processing time, hair is rinsed, dried, flatironed and then neutralized for 10 minutes and rinsed and dried again.
“It is very specialized and technical,” said Lam, explaining its $250-plus cost and 48-hour wait time to wash hair after receiving the service.
Women receiving Bumble’s straightening service, which retails for about $385, are advised to wait 24 hours before washing their hair, so “the technology can penetrate.”
Bumble’s Concen-straight Pro Treatment takes about two hours in the salon: Hair is washed with a clarifying shampoo, the formula is applied from roots to tips, after 30 minutes the formula is washed out and a consultation begins on how straight, wavy or voluminous a client wants her hair. A customized blowout and flatiron (if applicable) follows. Clients are expected to see the treatment beginning to wear off at 30 shampoos.
To help support the hair care line, travel sizes of Bumble and bumble Straight, as well as sample packets, will be available at launch. A comprehensive education training program, which includes a video on how to best deliver the Concen-straight is being filmed, too. The at-home version, which will sell for $45, is designed to last for 30 washes and employs the same technology as the in-salon service, just at a lower level. It launches in stores and salons Jan. 1.
“Nothing takes the place of what happens at the salon,” said Lichtenthal.
Bumble said it recognized the intense desire for straightening treatments and claims to have found room for improvement in the market. Concen-straight Pro’s technology, which is also in the hair care line, consists of a gemstone blend that is designed to vibrate and loosen hair’s inner S-bonds, which give it natural curve, said Fadi Mourad, executive director, product development. Polylysine, an amino acid, aims to refine and realign these S-bonds into smoother shapes. A silicone blend was added to seal and set shape straight for smoothness. A hydrolyzed wheat protein is used to condition hair (and is only in the professional treatment) and is used as a keratin replacement, since keratin is derived from animals. The formula, ultimately, opens the door to customize straightness, so a blow-dryer can build bend, a curling iron can rewind hair and a flatiron can render it straight, said Mourad. The service also aims for increased manageability and overall reduced frizz and flyaways. The hair care collection that was designed to support the service features Bumble’s first sulfate-free shampoo.
While Bumble is blowing out its service to half of its salon base, Laurie Lam, director of marketing, L’Oréal Professionnel USA, said they have chosen to take a preview strategy with Xtenso Moisturist, like it did with ammonia-free INOA.
“We are the number-one salon brand in the world. We could very easily get the sales we [ultimately] want, but it’s really about making sure it is being used safely and efficiently,” Lam said of the preview launch, which is now sold in a number of select salons, including select Gene Juarez salons in Seattle and and Pr & Partners (CT). Lam expects Xtenso Moisturist to be sold in 30 salons by mid-2012, including New York’s Dop Dop and Anthony DiFranco.
Unlike Bumble’s service, Xtenso Moisturist “is much like a chemical straightening service. We don’t compare ourselves with keratin, because keratin is surface treatment, where you don’t chemically change the hair. Xtenso Moisturist is indeed a chemical service.”
Yet, said Lam, it is also customizable.
“You can go for loose waves or slick, straight chopstick hair. It wears out over time,” she said, adding that there are three different formulas available depending on the client’s hair and whether it is untreated virgin, resistant or sensitized hair. A service can take between two and four hours, and all stylists are taught to perform a 15-minute strand test to determine a client’s hair type. The service consists of a shampoo, a mask and then an application of the formula to four separate sections of the head. After a customized processing time, hair is rinsed, dried, flatironed and then neutralized for 10 minutes and rinsed and dried again.
“It is very specialized and technical,” said Lam, explaining its $250-plus cost and 48-hour wait time to wash hair after receiving the service.
Women receiving Bumble’s straightening service, which retails for about $385, are advised to wait 24 hours before washing their hair, so “the technology can penetrate.”
Bumble’s Concen-straight Pro Treatment takes about two hours in the salon: Hair is washed with a clarifying shampoo, the formula is applied from roots to tips, after 30 minutes the formula is washed out and a consultation begins on how straight, wavy or voluminous a client wants her hair. A customized blowout and flatiron (if applicable) follows. Clients are expected to see the treatment beginning to wear off at 30 shampoos.
To help support the hair care line, travel sizes of Bumble and bumble Straight, as well as sample packets, will be available at launch. A comprehensive education training program, which includes a video on how to best deliver the Concen-straight is being filmed, too. The at-home version, which will sell for $45, is designed to last for 30 washes and employs the same technology as the in-salon service, just at a lower level. It launches in stores and salons Jan. 1.
“Nothing takes the place of what happens at the salon,” said Lichtenthal.
#19- Is there a good DIY Semi-Permanent brand?
Ion Keratin Smoothing
Many clients would benefit from a DIY SP-S treatment, especially for the fuzzies around the face that tend to pop out well before the entire head needs a treatment. Many requests have been made to the favorite in-salon brand to launch a take-home version, and hopefully someday that will be available.
In the mean time, Ion Keratin Smoothing Treatment is the best so far of the take-home versions. 3, 1/2 & 1/2 heads have been done so far, comparing Ion to Global's current resistant formula. Global goes flatter and reduces the volume more than the Ion treatment. However, the Ion treatment does take the hair to about the same straightness as Global initially, but wears off about 2x as fast.
Currently, the Ion Keratin Smoothing Treatment is the favorite take-home keratin treatment available at Sally's Beauty Supply.
#20- Notification of class action lawsuit against Brazilian Blowout
The made the following claims that were categorically false;
1. The product is made in America(actually made in Brazil, but packaged in L.A.)
2. Totally free of any toxic anything(actually contained the highest levels of formaldehyde of any brand)
3. So natural, even pregnant stylists and clients are safe using it(absolutely false and this claim started it's own category of lawsuits again BB)
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