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Introducing Copper Peptides I'm proud to introduce our newest launch: Copper Peptides Advanced Firming Serum! This contains 1% pure GHK Cu and 2% argireline for firming and improving fine lines and wrinkles. The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline Epigenetic mechanisms activated by GHK Cu increase skin collagen density in clinical trial EurekAlert! human clinical trials ghk cu hair growth copper peptide ghk cu hair growth clinical trial human Growing My Hair with Peptides. + GHK
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