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For best results, use Vitamin C in the morning and your Copper Peptide at night
L., McDonnell, E., Shuen, W
Compound-Level Evidence GHK-Cu A 2018 review in the International Journal of Molecular Sciences synthesized gene-expression data showing GHK-Cu modulates over 4,000 human genes (Pickart and Margolina)
These two compounds do not compete for the same receptor
Injecting too superficially, failing to rotate sites adequately, or not allowing alcohol to dry completely before injection all contribute to local reactions
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