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issues creating glutathione Glutathione: Master Antioxidant, Reducing Oxidative Stress, and Detoxification Injectable Glutathione
Description
The correlation between declining GHK levels and declining skin quality does not establish causation

10.1016/j.fsi.2018.09.032 86 LiL.ChenJ.LinL.PanG.ZhangS.ChenH.et al (2020)

The right response is not to dismiss that possibility, but to insist on the blinded, placebo-controlled human trials that could actually settle the question

Theres a study de Sousa referenced that found the body can store a two to three year supply of B12 when excess amounts are injected
