What is the pH value characteristic of thio chemical relaxers?

Thio chemical relaxers typically have a pH value that is above 10, which makes them quite alkaline. This high pH is essential because it helps to break down the disulfide bonds in the hair protein (keratin), allowing the hair to be straightened and relaxed. The alkaline nature of these products opens the cuticles of the hair, facilitating the penetration of the chemicals involved in the relaxing process.

The effectiveness of thio relaxers is due in large part to their high pH, which enhances the ability to alter the hair structure. A pH above 10 creates an environment that is conducive to making significant changes to the hair’s wave pattern. Thus, understanding the pH level is crucial for anyone working with chemical relaxers, as it directly impacts how the product functions on the hair.

Lower pH values would not provide the same relaxing effect, as they may not sufficiently open the cuticle or effectively break the necessary bonds in the hair.