Class One Nutrition Glutathione C Capsule is a dietary supplement that aids in whitening and lightening of skin tone. Enriched with potent antioxidants such as glutathione and vitamin C. Glutathione inhibits the production of melanin. As melanin is the substance responsible for pigmentation in the skin, glutathione can have a dramatic and positive effect on skin tone and color. Glutathione works by decreasing the melanin (pigmentation) in the skin, it also decreases wrinkles and increases skin elasticity. Glutathione works on the skin pigment production by inhibiting tyrosinase, an enzyme involved in making melanin. It helps white and lighten skin tone and remove dark spots by reducing melanin production in the skin.