Productgroup
Hair straightening products
Description
Hair straightening involves the straightening of frizzy and curly hair. At the uncurling on a thioglycolate basis, the product basis and the necessary steps are essentially comparable to perming (reducing treatment of the hair, shaping on curlers with a large diameter, oxidation and neutralisation). In particular on the ethnic market simple products on a hydroxide basis are used more frequently. The use of sodium, potassium and guanidinium hydroxide leads to a hydrolysis of the disulphide bonds of the hair and a chemical transformation of keratin components of the hair. After the alkaline treatment the hair must be washed and treated, for instance, with a neutralising shampoo.
Typically includes the following substance groups