what is the main ingredient in perm solution

what is the main ingredient in perm solution

what is the main ingredient in perm solution. There are any references about what is the main ingredient in perm solution in here. you can look below.

Click here to get more information about what is the main ingredient in perm solution if you're in U.S.

Click here to get more information about what is the main ingredient in perm solution if you're in U.K.