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Ethics declarations Ethics Approval and Consent to Participate This study got the permission of the Ethical Committee of Animal Experiments and Experiments Animal Welfare Capital Medical University (AEEI-2022-134)

These receptors play a role in tissue regeneration and vascular development

Key Takeaways GHK-Cu is a naturally occurring tripeptide-copper complex with documented roles in collagen synthesis and gene expression, but human RCT evidence remains absent as of 2026 Research-grade GHK-Cu must include HPLC purity 98%, mass-spectrometry identity confirmation, and bacterial endotoxin (LAL) testing in EU/mg Body Pharm supplies each vial with full per-lot traceability, including HPLC chromatogram, MS identity file and endotoxin result on request Published animal studies use 110 mg/kg subcutaneous dosing

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