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Licensed 503A compounding pharmacies can now prepare both topical and injectable GHK-Cu under a physicians prescription, following the April 2026 reclassification that restored injectable GHK-Cu to Category 1 status

GHK-Cu (Copper Peptide) is a naturally occurring tripeptide found in human plasma, saliva, and urine that binds copper ions and plays a key role in cellular signaling and tissue remodeling pathways

Martinou JC, Youle RJ (2011) Mitochondria in apoptosis: Bcl-2 family members and mitochondrial dynamics

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Its daily dosing maintains elevated growth factor signaling, continues promoting angiogenesis, and supports collagen synthesis throughout the entire recovery period -- not just in the days following the PRP injection