What does alpha hydroxy acid do?
Alpha hydroxy acid works as an exfoliant. It’s an acid, which means it can degrade organic compounds. Alpha hydroxy acid literally eats away at the top layer of the skin, removing the top, dead skin cells and revealing the living cells underneath. Because dead skin cells protect those underneath from the sun, regular exfoliation creates an increase in sensitivity to sunlight. Higher concentrations of alpha hydroxy acid, like those available to doctors, are capable of removing thicker layers of the skin, including surface scars and fine lines. Unfortunately, higher concentrations of alpha hydroxy acids result in greater irritation. After a 60% facial peel, a person could expect severe redness, flaking and oozing skin for four weeks!
