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Thio relaxer use the same ATG that is used in permanent waving but a higher concentration and a high pH (above 10). Thio relaxer is also call thicker with a higher viscosity.
Thio relaxer break disulfide bonds and soften hair, just as in permanents. Enough of bonds are broken the hair is straighten into its new shape, and the relaxer is rinsed from the hair.
The neutralizer used with thio relaxers is an oxidizing agent usually hydrogen peroxide, just as in permanents.
Hydroxide ion is the active ingredient in all hydroxide relaxer. It have a very strong alkalis with a pH over 13. Hydroxide relaxers are not compatible with thio, permanent waving , or soft curl perms due to the difference in chemistry
Hydroxide relaxer break disulfide bonds differently than in the reduction reaction of Thio relaxer
Metal hydroxide relaxers are ionic compounds formed by a metal sodium (Na), potassium (k), or lithium (Li) which is combined with oxygen (O) and hydrogen (H). Metal hydroxide relaxers include sodium hydroxide (NaOH), potassium hydrozide (KOH), and lithium hydroxide (LiOH
A Low-ph Relaxers most common used are ammonium sulfite and ammonium bisulfire.Low -pH relaxers for use on color treated damage or fine hair.
Base relaxers require the application of a protective base cream to the entire scalp prio to the application of the relaxer. No base relaxer do not require the application of the of a protective base cream.
No- base relaxer are improvement only on the protection that is provided to the skin by the oils in all hydroxide. For added protection protective base cream should always be applied to the entire scalp, hairline and around the ears even with no- base relaxers.