• AHA: alpha hydroxy acid: glycolic and lactic acid • BHA: salicylic acid and beta hydroxy *** AHA & BHA typically compose chemical & physical exfoliators! - Ingredients to look for: Salicylic, Glycolic, and Lactic acid in the top 10 ingredient list. - Use: exfoliator 2-3x per week. - Uses: exfoliation aka removing dead skin, correcting pigmentation, & age spots. - Goal of concentration: 15% with pH range of 3-4. - Side effects: irritation and sun sensitivity. *** bottom silver is my FAV physical exfoliator and contains Vit C & E! - pink grapefruit neutrogena is a BHA option only! liketkit @liketoknow.it @shop.ltk LTKskin LTKskincare LTKderm LTKRefresh LTKitbag LTKbeauty