Does taking glutathione actually work?, Many people take glutathione supplements hoping for brighter, healthier skin., But heres the truth , Once glutathione is swallowed, it enters the stomach IV vs Oral Glutathione: What Works Better for Skin Oral glutathione tablets may be easily accessible, but did you know they offer only 30% absorption? Dr Charu Sharma, Head of Dermatology at Cureskin, explains why Cureskin Gluta Active Bright is a 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