can you mix vitamin c and glutathione or C? Which is better for dark spots dull skin Combining Glutathione and Vitamin C:

A lack of glutathione in the body can lead to oxidative stress that can cause various health problems like diabetes, arthritis, and cancer

3.2 Antioxidant vitamins Oxidative stress is a potential mechanism in the pathogenesis of PD, and antioxidants, such as vitamin C (Vit C), vitamin E, and vitamin A and their active derivatives, are thought to potentially protect cells from oxidative damage, thereby inhibiting the onset and progression of PD

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Higher circulating vitamin D levels are associated with decreased migraine risk: a Mendelian randomization study

The concentrations used in GHK-Cu applications are well below toxic thresholds, but individuals with Wilson's disease (a copper metabolism disorder) should avoid GHK-Cu without physician supervision