What is the main ingredient in alkaline perms?

The main ingredient in alkaline perms is ammonium thioglycolate. This chemical works by breaking down the disulfide bonds in the hair, allowing it to be reshaped and curled when wrapped around perm rods. The "alkaline" aspect of this perm refers to the pH level of the solution, which typically ranges around 8.0 to 9.5. This alkaline nature enables the hair cuticle to open up more easily, facilitating better penetration of the perm solution.

When the hair is processed, ammonium thioglycolate alters the structure of the hair, allowing for the desired curls. It is specifically designed for hair types that can withstand the slightly harsher effects of the perming process, such as coarse or resistant hair, making it a popular choice among professionals for creating durable curls.