does pinning ghk cu make skin tighter “Is GHK-Cu actually worth it?” is genuinely one of the most common questions in my comments, so let me finally answer it properly., The short version: copper peptides have real research behind them, GHK-Cu Peptide: Benefits for Tissue
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Research suggests it may help promote blood flow, encourage new blood vessel formation, support collagen production, and help regulate inflammation

Center for Medicine in the Public Interest
on The Joe Rogan Experience
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