Review (5/5): Good and powerful
Powerful substance. Be careful with it. It WILL burn you. I have been using it in a face cream with hyanuralic acid, Vit C. Seems to have increased the speed at which wrinkles are disappearing.
Despite small quantity, a little goes a long way, as you want your cream to be only about 2% glycolic acid. As I said, it will burn you if used straight up, or even 50/50 with a carrier oil. I don't intend to use it for chemical peels- save that for the pros with this stull. Salicylic acid is much safer for DYI.