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Copper peptide is a broad label, but the most studied one in cosmetic use is GHK-Cu, also called copper tripeptide-1, and it shows up in many high-end formulas for skin quality
The fact that many peptide users are taking them for physical performance and healing reasons makes establishing those sorts of metrics harder, Spittler says
How are peptide treatments administered
Vitamin C plays a primary role in this process
GHK-Cu is not an anabolic peptide and does not directly build muscle
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