... effect against uv rays, delay senescence [Main components]:β-carotene, vitamin C, vitamin E acetate, sodium selenite, etc.[Efficacy components]:each ... an important role,3, smoking, alcohol, eat meat, live in air polluted areas,4, dieting or long-term use of contraceptives ... harmful effects of oxygen free radicals to a minimum. Vitamin C can inhibit the activity of tyrosinase contact, blocking melanin ...