I do not know the PH of Sulfur, but you could pick up some litmus papers at any pharmacy to test the PH of the shampoo.
Anything (over) a 7 on the acid scale would be too strong for color treated hair. It would pull the color out faster.
Recommend no more than a 6.5 Ph for any shampoo.
The hair doesn't get that dirty unless you work in grease and get it in the hair.
Anything (over) a 7 on the acid scale would be too strong for color treated hair. It would pull the color out faster.
Recommend no more than a 6.5 Ph for any shampoo.
The hair doesn't get that dirty unless you work in grease and get it in the hair.
