What is the pH level of a thioglycolate relaxer?

The pH level of a thioglycolate relaxer typically falls within the range of 8 to 10. Thioglycolate relaxers work by breaking down the disulfide bonds in the hair's keratin structure, allowing for smooth and straight styles. This pH range is essential as it facilitates the chemical reaction needed to alter the hair structure effectively without causing excessive damage.

A pH level of 8 to 10 indicates a mildly alkaline solution, which is necessary for the relaxer to penetrate the hair shaft effectively. The slightly higher pH levels help swell the hair cuticle, making it easier for the active ingredients to reach the hair's cortex and perform their intended action.

On the other hand, lower pH levels, such as those in the ranges of 5 to 7 or 6 to 8, would be too mild to facilitate the chemical process required for relaxation. Conversely, a pH of 10 to 12 would be considered very alkaline, which could potentially lead to over-processing and damage to the hair. Therefore, the pH of 8 to 10 strikes the right balance for safe and effective hair relaxing.