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A permanent wave, commonly called a perm or permanent (sometimes called a "curly perm" to distinguish it from a "straight perm"), [1] is a hairstyle consisting of waves or curls set into the hair. The curls may last a number of months, hence the name. Perms may be applied using thermal or chemical means.
More specifically, it depends on your hair texture and what you’ve done to it in the past. The curl-perm process adds body and volume to flat or straight hair, giving it more volume and making ...
Another type of "no-lye" relaxer uses ammonium thioglycolate, which is also known as perm salt for its use in permanent waves. 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.
Key Ingredients: 2% minoxidil solution, biotin gummies, shampoo with salicylic acid, saw palmetto, and pumpkin seed oil | Best for: All hair types experiencing thinning and loss, and those that ...
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 .
Here is why some women are deciding to go back to relaxers after years of dealing with their natural hair. ... but as is the case with many permanent chemical processes, relaxers can make hair ...
In Sir Hugh Plat's 1602 work Delightes for Ladies, the use of oil of vitriol (sulfuric acid) to bleach black hair to chestnut is described as: "Take one part of lead calcined with Sulphur, and one part of quicklime: temper them somewhat thin with water: lay it upon the hair, chafing it well in, and let it dry one quarter of an hour or ...
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