Amphoteric AHA Formulas Reduce Irritation, Stinging In NeoStrata Studies
This article was originally published in The Rose Sheet
Executive Summary
Application of alpha hydroxy acid formulas developed with amphoteric agents led to moderate facial skin irritation after 11 days while an AHA solution with ammonium hydroxide caused skin irritation after four days in a recent study by Princeton, N.J.-based NeoStrata.