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Experts, including our Grooming Commerce Editor Sean Zucker, considered these, as well as top-rated hair dyes at retailers we trust, to determine the hair dyes for men with gray hair worth purchasing.
The chemical solution used in the perming process is determined by the client's hair type and the pH of the solution. Classic alkaline perms are used for stronger, coarser hair. They work at room temperature and usually contain ammonium thioglycolate in the pH range of 9-10. Acid perms are used on more delicate or thinner hair.
Perm salt is a chemical reducing agent which selectively weakens the hair's cystine bonds instead of disrupting the entire protein, but strips out the natural oils even more thoroughly than the alkali hydroxide products. Afterward, the thioglycolate must be oxidized with a special solution of hydrogen peroxide or sodium bromate.
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. After washing, the hair is treated with a mild solution of hydrogen peroxide, which oxidizes the cysteines back to cystine. These new chemical bonds impart the structural rigidity ...
Everything you need to know about the volumizing hair treatment. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ...
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