Ammonium thioglycolate relaxers typically have a pH level of?

Ammonium thioglycolate relaxers have a pH level that typically ranges from 8.5 to 9.5, which is alkaline. This alkaline pH is crucial for the effectiveness of the relaxer, as it helps to open the hair's cuticle and allows the active ingredient to penetrate the hair shaft. The high pH is essential for breaking down the bonds in the hair, specifically the disulfide bonds, enabling the hair to be reshaped into a straighter form. It is important for hairstylists to understand the pH level of these products, as it influences both the chemical process and the timing when applying the relaxer for optimal results while maintaining hair health.