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 effects, Glutathione your skin's supposed super serum? Here's the catch: half of it may degrade before it even reaches your skin And the actual brightening results? Let's just say underwhelming. The Magic Molecule: An Inside Look at How Glutathione Works Setu Nutrition Amazon.com: It'S SKIN Glutathione Shot B3 Serum 1.01 Fl Oz, Niacinamide Facial Serum, Dark Spot Corrector, Face Exfoliation, Hydrating Serum for Hyperpigmentation, Acne Scars, Blemish Spot, Korean Skincare : Beauty & Personal