The Optimizing part of a COMP skincare routine can consist of various steps, but one of the best for most skin types (except dry and sundamaged skin) is to use an effective BHA exfoliant. “Effective” in this case means that the product is acidic (“sour”) enough for the BHA (Beta Hydroxy Acid) to work as an exfoliant, which is why a pH between 3 and 4 is preferred. You can read… Read More »