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GHK-Cu represents the copper complex of the naturally occurring tripeptide glycyl-L-histidyl-L-lysine, exhibiting the molecular formula C14H22CuN6O4 with a molecular weight of 403.92 g/mol

Briefly, samples were prepared in a sulfosalicylic acid solution containing the internal standard, GSH-(Gly- 13 C 2 , 15 N)

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Reconstituted solutions are generally advised to be stored at low temperature, shielded from light, and used within a defined experimental window to maintain potency and limit microbial risk, in accordance with local lab practices

A clear, brilliant blue solution is a key indicator of authentic, properly constituted GHK-Cu