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The side effect profile is not trivial
Initial Fatigue: Some users report feeling tired for the first few days as metabolism adjusts
The copper ion itself serves as a cofactor for lysyl oxidase, the enzyme responsible for collagen and elastin cross-linking, meaning GHK-Cu both stimulates production of new structural proteins and ensures they are properly stabilized
What high B12 means If your B12 is elevated because of supplements or injections, its usually harmless
It results in feeling fuller for longer, even when consuming less food
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