Unlike most cosmetics and skin care products, Cellex C puts expiration dates on theirs. This particular gentle cleansing milk is especially great during the winter, when room heaters tend to dry out ones complexion. I use this product throughout the year, though, and it keeps my face clean without drying. Great to use before retiring at night. Only one small pump worth of the product is sufficient for a good cleaning. I follow with a non-alcohol toner. Same company makes a gentle foaming cleanser, also. I alternate that with the cleansing milk in the hottest summer months, as I tend to have slightly oily skin...