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GHK-Cu + AHK-Cu Copper Peptide Shampoo, 4000mg Size:10.6oz (300g) How It Compares to Pal-GHK GHK-Cu is the tripeptide GHK complexed with a copper ion, while Pal-GHK is the GHK peptide bound to a palmitoyl group https://d33v4339jhl8k0.cloudfront.net/docs/assets/5e2042cf04286364bc93fc98/images/6582f70cd0cad521927aa869/file-QIxBBtSbNc.png fish safe

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