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He invented the first ammonia- free hair color, after developing an allergy to the chemical that initially led doctors to encourage him to leave his profession. [ 2 ] His company, the Houston-based Farouk Systems, currently employs 600+ people in the US, and exports its line of hair and skin care products under the BioSilk, SunGlitz and ...
The company was founded in 1960 by Jheri Redding and Paula Kent, thus the name, "Red-ken."Redken pioneered the "Scientific Approach to Beauty," and revolutionized the professional salon business by introducing the concept of protein reconditioning and developing new protein based products, which they patented.
A solution containing ammonium thioglycolate contains a lot of free ammonia, which swells hair, rendering it permeable. The thioglycolic acid in the perm solution reduces the disulfide cystine bonds in the cortex of the hair. [2] In a sense, the thioglycolate removes crosslinks.
Bleaching the hair is a gradual process and different colors may be achieved dependent on the original hair color, application time, and strength of the product used. Applied on black hair, the hair will change its color to brown, red, orange, orange-yellow, yellow, and finally pale yellow. [19]
These ammonia-free acid perms, sometimes called buffered waves, use glyceryl monothioglycolate in the place of ammonia. Acid perms, or buffered wavers, are slower but gentler to the hair. Heat is usually added by placing the client under a dryer, after covering the wrapped head with a plastic cap.
A woman with dyed pink hair. Hair coloring, or hair dyeing, is the practice of changing the color of the hair on humans' heads.The main reasons for this are cosmetic: to cover gray or white hair, to alter hair to create a specific look, to change a color to suit preference or to restore the original hair color after it has been discolored by hairdressing processes or sun bleaching.
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