Lactic acid and glycolic acid are both alpha hydroxy acid (AHA) exfoliators. Both AHA's stimulate cell renewal and cell turnover rates but studies have shown lactic acid does so at a higher rate and with less irritation than glycolic acid. Lactic acid has some added benefits such as it is more hydrating, increases the natural barrier lipid in the epidermis and helps lighten hyperpigmentation.
I prefer to use lactic acid in my professional services because it is the best for those of us with sensitive skin and are prone to allergies. I apply a 30% strength after I dermaplane the face and neck. I also like adding lactic acid to my home care regimen by using a cleanser that contain the ingredient.
Dana Cochran
(805) 496-2466
Skin Care Solutions