The bad: milk, although natural, safe and convenient, but the effect is relatively short-lived, and the permeability can only stay on the surface of the skin, so it can not completely replace the use of skin care products. In addition, some people directly use milk will be itchy skin allergies. Oily skin can not use pure milk to beauty skin care, because oily skin itself oil secretion is very exuberant, if the nutrients in the addition of pure milk will beauty not in turn harm the skin, and even serious cases will help grow acne!