Glutathione is a powerful antioxidant often marketed for brighter, more even skin tone and reduction of dark spots from acne or sun damage. While oral glutathione may offer mild skin brightening Glutathione in skincare. Heres the 60 second version., Antioxidant? YES. Brightening potential? Maybe., Unstable, temperature sensitive, and smells funky , Bonus ingredient, not a must have. Tried Amazon.com: Arencia Vitamin C Booster Shot Serum with Glutathione, Niacinamide and Vitamin E for Dark Spot Care, Fine Lines & Wrinkles, Glass Skin, Korean Skincare 30ml 1.01 fl.oz : Beauty & Personal Care Amazon.com: Glutathione Whitening Pills 120 Capsules 2000mg Glutathione Effective Skin Lightening Supplement Dark Spots, Melasma & Acne Scar Remover, Hyperpigmentation Treatment Anti Aging Antioxidant : Health & Household