Research compound
GHK-Cu
A copper-binding peptide discussed in skin and connective-tissue research.
Also discussed as: Copper peptide · Copper tripeptide
THE RESEARCH QUESTION
What is being investigated?
Experimental wound studies have examined collagen and other connective-tissue changes. Cosmetic use on the skin and systemic administration are different questions.
EVIDENCE SNAPSHOT
Preclinical; route matters
The cited wound study involved rats. It does not establish an injectable rejuvenation treatment in humans, and evidence for a cosmetic formulation cannot validate an injectable preparation.
LIMITS & SAFETY
What should you know?
Limited human safety information for injectable use.
FOLLOW THE EVIDENCE
Sources & further reading
- GHK-Cu: experimental wound research in rats (1993) ↗Animal study
- FDA: safety information for bulk substances used in compounding ↗Regulator
- Huberman Lab with Dr Abud Bakri: Peptides, Science, Uses & Safety (2026) ↗Commentary
Checked 8 October 2026. Sources may describe different populations, formulations and jurisdictions. This overview is not a systematic review or individual medical advice.
PUT THE EVIDENCE IN CONTEXT
Questions about what you’ve read?
Request an educational conversation with Matthew about the evidence and questions to raise with your medical professional.