Beta hydroxy acid (BHA) — See also salicylic acid. Salicylic acid is the most commonly used beta hydroxy acid.
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Bev's Skincare Glossary
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Salicylic Acid — (See Beta Hydroxy Acid) Beta-hydroxy acids (BHAs) are keratolytic and anti-inflammatory. Salicylic acid is an effective ingredient in acne products and is widely used in acne cleansers and lotions. They work by dissolving the top layer of stratum corneum cells (reducing SC thickn...