COSRX Low pH Cleanser for Gentle Skin Care | Hydrating Face Wash Formula Treat your skin to the gentle care it deserves with COSRX Low pH Cleanser. This hydrating face wash is formulated to maintain your skin’s natural pH balance while effectively removing impurities. Ideal for all skin types, it leaves your skin feeling fresh and clean without stripping away moisture. Experience the benefits of a gentle cleanser that nurtures and protects your skin.