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How to think about energy balance in the context of evaluating a specific diet [A: 20:15, V: 21:10]

Dziennis and Alkayed, 2008)

10.1080/15548627.2023.2165323 322 YangF.LiaoJ.YuW.QiaoN.GuoJ.HanQ.et al (2021)

GHK-Cu was injected intraperitoneally at doses of 0.2, 2 and 20 g/g/day in 100 l of saline on alternative days from the 1st day after CS exposure

The reality check: the FDA does not consider it a legal cosmetic or dietary ingredient, and there is real concern that long-term use raises the risk of melanoma (skin cancer) the opposite of what most people assume a tan in a vial would do for skin safety (WebMD)