What is the pH range of thio-free waves?

Thio-free waves, often referred to as "low pH" or "acidic" waves, utilize a different chemical composition than traditional perm solutions, which contain thioglycolic acid. The pH range of 7.0 to 9.6 is suitable for thio-free waves because it allows for the necessary modification of the hair's disulfide bonds without causing excessive damage. This pH range strikes a balance between effectiveness in curling the hair while maintaining a milder effect on the hair structure and scalp.

Higher pH levels, particularly above 9.6, can be far too harsh, leading to dryness and potential damage, while ranges lower than 7.0 may not provide the sufficient alkaline environment needed for perming hair effectively. Therefore, understanding this pH range is crucial for choosing the right product for chemical waves that are gentle yet effective.