Paula's Choice 2% BHA Liquid Exfoliant 118 ml. Condition: New. Origin: China. This exfoliator contains 2% salicylic acid, a fat-soluble beta-hydroxy acid that penetrates the lipid layer of the skin to cleanse clogged pores and reduce their visibility. The formula includes green tea leaf extract, which has an astringent, anti-inflammatory and toning effect. The pH value ranges from 3.2 to 3.8. The product cleanses and regulates the work of clogged sebaceous glands and has an exfoliating effect. It helps prevent breakouts. Suitable for oily skin, combination skin and skin with visible blackheads. Usage: After cleansing, apply to the entire face before your moisturizer. Do not rinse. Use a high level of sun protection during the day. Salicylic acid can cause irritation; it is recommended to use the product 1-2 times per week initially. Avoid the eye area. Expiration date is 12 months after opening.