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 as a skin whitening agent: Facts, myths, evidence and controversies Indian Journal of Dermatology, Venereology and Leprology Glutathione for skin lightening Dermatologist explains Effective Oral Treatments for Melasma Clear Skin Clinic How to Take Glutathione Effectively: Dosage & Tips