AHA BHA 2 BLEMISH TREATMENT SERUM. Benefits: Gentle but effective blemish spot treatment for acne-prone skin.. Mildly exfoliates and clears troubled spots with 2% AHA and BHA.. Easy to use, hygienic cotton balls soaked with serum, perfect for spot targeted area.. Key Ingredients: Glycolic Acid (AHA) 2%: Unclogs pores to help remove impurities from the skin. Salicylic Acid (BHA) 2%: Controls the overproduction of sebum. PHA(Gluconolactone), Allantoin, Zinc PCA, Sodium Hyaluronate: Reduces sebum production from pores. Formulated Without: Parabens. Sulfates. Phthalates.