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It also supports immune function and plays a role in building and repairing tissues
Leung YW, et al
GHK-Cu, by contrast, has only preclinical (laboratory and animal) evidence and has not been validated in large-scale human trials
This is meaningless without a more specific claim of reducing the common cold or similar. Why Experimental Peptides Can Be Risky Most could be considered risky unless FDA approved with phase 3 trials
Biomolecules, 9 (8), 356
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