What you need to know before opting for Glutathione for skin whitening:, 1. Does Glutathione cause skin lightening? , There are no significant studies to prove the effectiveness of Glutathione as a Retinage Cleansing Bar pH Lab Global Niacinamide with Glutathione Bar Soap by BMRS 70g Rejuvenating Sets Clini Tone Mild Lightening Glutathione Enriched Bar Soap is designed to gently brighten, even out skin tone, and deeply cleanse the body, promoting a radiant and smoother complexion. Enriched with glutathione and botanical Glutathione as a skin whitening agent: Facts, myths, evidence and controversies Indian Journal of Dermatology, Venereology and Leprology