beta hydroxy acid

Antibacterial/Anti-Acne , Anti-Irritants , Antioxidants , Leave-On Exfoliant

Beta hydroxy acid, also known by the acronym BHA, refers to the ingredient salicylic acid. A beta hydroxy acid (BHA) product with salicylic acid exfoliates skin, reduces redness, provides a mild anti-bacterial action, and stimulates collagen production. It is a multi-benefit ingredient used to improve acne, blackheads, white bumps, uneven skin tone, wrinkles, large pores, oily skin, and reddened/sensitive skin. Beta hydroxy acid can be helpful for improving redness related to the skin disorder rosacea. In order for beta hydroxy acid products to function as exfoliants, the pH of the product must be between 3 and 4 (lower pH values are effective, too, but much below pH 3 is very irritating to skin).

See salicylic acid

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Paula Begoun is the best-selling author of 20 books on skin care and makeup. She is known worldwide as the Cosmetics Cop and creator of Paula's Choice. Paula's expertise has led to hundreds of appearances on national and international television including:

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The Paula's Choice Research Team is dedicated to helping you find the absolute best products for your skin, using research-based criteria to review beauty products from an honest, balanced perspective. Each member of the team was personally trained by Paula herself.

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