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PMCID: PMC9687310
The "interaction" question, for most patients asking it, involves topical GHK-Cu serums combined with oral metformin
It is a tripeptide, consisting of three protein amino acids L-glutamic acid, L-cysteine and L-glycine, which has antioxidant potential
GHK-Cu: the collagen and extracellular matrix rebuilder GHK-Cu (glycyl-L-histidyl-L-lysine copper complex) is a naturally occurring tripeptide that declines significantly with age
These chemical compounds have a similar molecular structure, each of which shows vitamin activity in a vitamin-deficient biological system
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