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Nature Metabolism

Early correction stops progression and restores function

In the rats that received GHK-Cu, the researchers found an increase in total protein and collagen synthesis greater than that of the placebo group, demonstrating that GHK-Cu is able to increase extracellular matrix accumulation in wounds in vivo .28 Are GHK-Cu copper peptides safe

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[4] [6] The concern about B12 keeping people awake likely stems from its role in energy production