BHA (Beta Hydroxy Acid)
Beta hydroxy acid, (BHA) is also known as salicylic acid. Salicylic acid, unlike AHA such as Glycolic Acid, Lactic Acid, Malic Acid is oil-soluble.
What are the benefits?
Product with salicylic acid exfoliates skin and soothes. It is a multi-purpose ingredient used to improve acne and blackheads. In order for beta hydroxy acid products to be an effective exfoliants, the pH of the product must be between 3 and 4 (lower pH values is more effective but below 3 is very sensitising to skin.