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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.
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 ...
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.
The curl-perm process adds body and volume to flat or straight hair, giving it more volume and making it easier to style. Do Perms Ruin Your Hair? Here’s What Stylists Want You To Know
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 .
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The perm also serves to 'rough up' Asian or white people's hair so that it will more easily tangle. A natural look begins to occur a few months later when the hair loosens somewhat. Within the time-span of several weeks to months, depending on the setting method, dread-permed dreadlocks will look nearly indistinguishable from naturally grown ...
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