Oral glutathione has been everyone on my timeline but does it actually work?! Looking at the data, its very modest to be honest. Id recommend sticking to what we know works fo hyperpigmentation in How Long Does it Take to See Results with Dr James Glutathione Injections Glutathione Injection For Skin Whitening: Cost, Benefits And Side Effects Glutathione Tablets Before and After: Results to Expect How Long Does It Take For Glutathione IV Therapy To Work? Imge Clinic