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It is not FDA-approved for muscle growth and remains an investigational compound
Peptide calculator search intent often brings together calculator-page context and research-documentation questions
GHK-Cu is the copper-complexed form where Cu is coordinated by the imidazole nitrogen of histidine, the alpha-amino group of glycine, and the deprotonated amide nitrogen
PROTEIN: 176 G PER DAY
Endocrinology (2011) 152(11):40729
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