Ask if you want to make acne gel using 4% Oligopeptide-10 together with Complex Salicylic Acid, how much Complex Salicylic Acid should be used?
Ask if you want to make acne gel using 4% Oligopeptide-10 together with Complex Salicylic Acid, how much Complex Salicylic Acid should be used?
Depending on the skin condition, how easily it is irritated, may start at 1-2%, if not irritated, then the concentration may be increased.