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GHK-Cu is a small signal tripeptide (Glycyl-L-histidyl-L-lysine) chelated to a divalent copper ion
What Conditions and Goals Do Glutathione Injections Support
"NiceZyme View of ENZYME: EC 1.6.5.3"
It features a 13-amino-acid N-terminal extension plus an arginine substitution at position 3, modifications that markedly prolong half-life and reduce binding to IGF-binding proteins in laboratory models
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