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Yes GHK-Cu and retinol are one of the most powerful anti-aging combinations available
It can speed things up and cause loose stools or slow things down and cause constipation
Consult a qualified provider before use
Zheng, Z., Huyan, Y., Li, H., Sun, S
For a broader comparison of the blend against a defined single copper peptide, see our GHK-Cu vs KLOW peptide breakdown
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