Glutathione: a powerful antioxidant for a healthy skin Oral vs. Topical Glutathione by Gluvit S: What Works Better for Skin B Glutathione: a powerful antioxidant for a healthy skin Glutathione and Side Effects: What You Need to Know for Better Health Performance Lab Glutathione is being marketed as the holy grail product for those seeking to lighten their skin tone, but there is limited evidence to support this claim.