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Reductions in spot ultraviolet in certain subgroups, spot polarization, and skin tone were greater in the glutathione supplement group than in the placebo group, but the difference was not statistically significant

GHK-Cu serums are applied directly to the skin, usually twice daily

doi:10.5021/ad.2016.28.4.438 Bobyntsev II, Chernysheva OI, Dolgintsev ME, Smakhtin MY, Belykh AE

At 1 mL reconstitution: the doses double per IU

Fortunately, you can eat other foods that provide the building blocks needed to boost your glutathione levels naturally

Be patient and realistic about the expected results, and communicate regularly with your healthcare provider about your progress