Leave On Exfoliant and Blemish Remedy 2oz - For all and sensitive skin types. 8% Alpha Hydroxy Acid 2% Salicylic Acid pH 3.5- 4.0 Keeps skin clear, clean and smooth. Tip: AHA products that wash off, or with a pH higher than 4.0 do not exfoliate. This one has a pH of 3.5 and you leave it on. Use it to help diminish bumps, roughness and blemishes anywhere on your face or body. Salicylic acid goes deeper into the pores to smooth skin and safely dry up blemishes. 50% organic, not including water.