Depth of Glycolic Acid
Depth of the glycolic acid peel depends on the concentration of the acid used, the number of coats applied, and the time for which it is applied. Hence, it can be used as a very superficial peel, or even a medium depth peel. It has been found to be very safe with Fitzpatrick skin types I–IV. All in all, it is a peel that is here to stay.
Sharad J. Glycolic acid peel therapy - a current review. Clin Cosmet Investig Dermatol. 2013;6:281-288. Published 2013 Nov 11. doi:10.2147/CCID.S34029