BHA, or beta hydroxy acid, is more commonly known as salicylic acid.
Benzoyl peroxide is considered the most effective over-the-counter topical acne treatment. Learn more.
Also called beta hydroxy acid (BHA), this exfoliant, skin-soothing ingredient tackles many of the causes of acne and improves the appearance of clogged pores.
About the Experts
Paula Begoun is the best-selling author of 20 books about skincare and makeup. She is known worldwide as The Cosmetics Cop and creator of Paula’s Choice Skincare. Paula’s expertise has led to hundreds of appearances on national and international radio, print, and television including:
The Paula's Choice Research Team is dedicated to busting beauty myths and providing expert advice that solves your skincare frustrations so you can have the best skin of your life!