Vitamin C is a colorless crystal with sour taste, which is easily destroyed by oxidation after sunlight irradiation. Vitamin C can maintain normal capillary penetration and connective tissue metabolism in vivo. Regulate fat metabolism and promote cholesterol conversion; Protect unsaturated fatty acids from being oxidized into peroxides. Because vitamin C has the above excellent effects, it is widely used in whitening and antioxidant beauty and skin care products.

Foods rich in vitamin C include cucumbers, tomatoes, garlic, apples, onions and peppers.

Excellent antioxidants help reduce the damage of free radicals to the skin, help reduce wrinkles and improve skin structure. Inhibit the deposition of abnormal pigment and the activity of tyrosinase on the skin, and help to reduce dopa pigment (the intermediate of tyrosine transforming into melanin), thus reducing the formation of melanin.

Melanin deposition is a kind of skin phenomenon, which is caused by endocrine balance, almost everyone has it, and it is caused by ultraviolet radiation. This abnormal pigmentation of melanin deposition can affect the beauty of human skin and appearance.

Melanin deposition mainly includes nevus OTA, melanocytic nevi, various traumatic tattoos, bad eyebrow tattoos and tattooed eyeliner.