Curl & Slim for extremely damaged hair
Acid waves usually have a pH rating between 4.5 and 7.0, and require heat to speed processing. The main ingredient in an acid perm is glyceryl mono thioglycolate. Since hair has a pH of around 5.0, acid waves are less damaging to the hair, require the heat of a dryer usually and typically do not produce as firm as curl as an alkaline wave.
It is best for individuals with:
- very fine textured hair
- damaged hair
- has been processed with other harsh chemical services again
Alkaline waves are made using an alkaline ingredient, generally ammonium thioglycolate. They are also usually between 9.0 and 9.6 in pH. Alkaline waves are also called "COLD WAVES" since they don't need any extra heat source to process. These work best on hair that is coarse, thick or resistant to processing as well as "normal" virgin hair as they are much stronger when compared to acid waves.
