Alpha Hydroxy Acids in the formula of the product are Glycolic Acid and Lactic Acid. Beta Hydroxy Acid is Salicylic Acid. With the hydrophilic (water-soluble) effect of Alpha Hydroxy Acids and the lipophilic (oil-soluble) effect of Beta Hydroxy Acids, it helps cleanse dead cells formed in different areas of the skin. The pH of the product is 3.8; BHA ratio is 2% (Salicylic Acid), total AHA ratio is 10%. (Glycolic Acid 6%, Lactic Acid 4%) Suitable for normal and oily skin types.