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Hair Straightening Options And Safety Concerns
Hair Straightening Options And Safety Concerns
Products that break the strong disulfide bonds that hold adjacent hair strands together can create nearly irreversible changes to hair shape. These changes, that last until the hair grows out and is cut off, are accomplished with lye and similar hydroxide based relaxers, or with chemicals commonly used in permanent wave solutions thiolglycolate or sulfitebased reducing agents. Crosslinking' processes was extensively studied as long as they are most often used to repair damaged wool textiles. While following test results showing high levels of formaldehyde, the manufacturer of Trichovedic preemptively recalled the product, anticipating a mandatory recall ordered by the Australian Competition Consumer Commission, in November 2010. Company reformulated its products. Now let me ask you something. Is this product safer than the original? So, while raising questions about the veracity of their claims about Brazilian Blowout Zero, brazilian Blowout long denied the use of formaldehyde in their original product.
Alkaline hair straighteners, most commonly depending on lye, in addition known as sodium hydroxide, a highly caustic chemical that is also used in drain cleaners like Drano.Alkaline straighteners are said to smell better, work more quickly and last longer than perm treatments using ammonium thioglycolate and similar chemicals.
They can be caustic and cause irritation and burning, make the hair feel coarse and render it fragile and prone to breaking.
They cause irreversible changes in hair strands. Lye based' hair relaxers were the focus of Chris Rock's 2009 documentary Good Hair, that vividly depicted pain and scalp burning. Prolonged exposure will dissolve hair. People with curls have elliptical, not circular hair follicles. Seriously. While changing curly hair to straight or vice versa, the elongated opening waves the hair like curling ribbon.Hormonal changes and because of formaldehyde related health concerns, permanent press and similar 'noiron' clothing historically rely on 'ureaformaldehyde' to crosslink fibers.In 2010 the Government Accountability Office reported that formaldehyde releases from textiles had diminished since the 1980s.
Hair continuously releases formaldehyde as it slowly reverts to its natural curly or frizzy state.
Testing results and product instructions show that products with formaldehyde concentrations of more than 6 percent can be washed out of the hair immediately. For instance, products with less formaldehyde, typically 2 percent, must be left in the hair for up to three days to increase the total number of keratin crosslinking bonds that determine how long the hair will stay straight. Cosmetic Ingredient Review found in 1991 that three thioglycolate ingredients caused allergic responses at levels of 25 to 5 percent. Normally, perm solutions contain up to 15 dot 4 these percent ingredients. Besides, the peak concentration of 279 parts per million recorded during a 13minute application is nearly three times higher than 1 parts per million, the level at which the Occupational Safety and Health Administration requires a warning label. Tests published by the company show that the application process releases significant amounts of formaldehyde.
Perm solutions are much less aggressive than lye type relaxers.
Drawbacks are unpleasant odors that must be masked by strong fragrances and degradation of the hair fibers. As the character Elle Wood in the film Legally Blond said …isn't it the first cardinal rule of perm maintenance that you're forbidden to wet your hair for at least 24 hours after getting a perm at the risk of deactivating the ammonium thioglycolate? Over time, hair returns to its natural position. Methods to flatten waves and frizz include everything from flat ironing 'blowndry' hair a few times a week to enduring a multihour formaldehyde process that lasts three months or longer.
Identical chemical family as formaldehyde.
Whenever leading to really similar health concerns as formaldehydebased products, these chemicals decompose to formaldehyde under the heat of a blow drier or flat iron. Loads of alternative aldehydes present health concerns similar to those of formaldehyde. Essentially, worker safety information published by a chemical manufacturer says they could trigger asthma attacks in sensitive individuals, nonetheless the chemicals appear to be less hazardous than other hairstraightening compounds. Symptoms may include broncho constriction, shock, gastrointestinal disturbances, angio edema, flushing, and tingling sensations. Can be replaced by alternate aldehydes similar to citral, octanal or cinnamic aldehyde.
Coppola's hair straightener would also contain glutaraldehyde or extra formaldehyde. Running a flat iron through 'blown dry' hair breaks the hair's hydrogen bonds.It flattens hair until water or water vapor penetrates the hair fiber and allows the hydrogen bonds to revert to their natural positions. Accordingly the flat iron process is the top choice among EWG researchers as long as it is chemical free. You can pay a stylist or do it yourself indoors.You can easily touch up your hair with a flat iron when a night's sleep musses it up.
By the way, a strikingly similar process was patented in 1945, albeit advertisements for chemical hair straighteners like Brazilian Blowout claim the method is discovered recently.
Cold permanent waves depending on chemicals, not heated rollers, were developed during World War I.
Permanents for curling straight hair were introduced in the early 20th century. Remember, Then the active ingredient in no lye relaxers is often calcium or potassium hydroxide or guanidinium hydroxide. In every case, the consumer lost hair. With that said, this mixture is less caustic than a 'lye based' relaxer but poses similar dangers scalp and skin burns and hair damage. A well-known fact that is. In accordance with documents obtained by EWG in response to a Freedom of Information Act request, between November 2008 and August 2010, FDA received at least five severe reports adverse effects after the use of nolye relaxers. Brazilian Blowout says the active ingredient in its new straightener is glycolic acid, derived from sugar cane.
Sulfites and bisulfites can break the hair's sulfide bond.
They are common in 'home use' products.
These chemicals react a lot more slowly with hair than the ammonium thioglycolate used in Japanese straighteners and are less irritating to the skin. Consequently, hair straighteners work by rearranging the chemical bonding within hair. They claim results last 12 weeks or longer. Usually, brazilian Blowout and similar popular chemical hair straighteners rely on a combination of formaldehyde and keratin. Did you hear of something like this before? While transforming curly hair to flat, by blowing saturated hair dry and compressing it with a flat iron, the stylist accelerates the cross linking reaction. Formaldehyde molecules diffuse into the hair and cross link strands of keratin and crosslink new keratin with the keratin in the customer's hair. First solution breaks the hair's disulfide bond.
Fixative remakes the chemical bond in the new position. Permanent solutions can curl or straighten hair, determined by the hair is styled when they are applied. On its website the company claims that the product straightens the hair as effectively as its formaldehyde based formulations.