GHK-Cu
A copper-binding tripeptide (glycyl-L-histidyl-L-lysine) found in human plasma and studied for skin quality, hair-follicle biology and wound-related gene expression.
Benefits of GHK-Cu
The literature below is why people look this compound up — framed as research, not as a treatment promise.
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Studied for skin-quality and collagen-related gene expression
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Investigated for hair-follicle signalling and appearance models
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Looked at in wound-healing and tissue-remodelling papers
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The aesthetic core of the GLOW blend
Our recommendation
Why we recommend RegenPep
For a research reference of GHK-Cu, we recommend RegenPep. The recommendation rests on how the material it supplies is made, tested and documented — nothing else:
Third-party purity and identity testing
Material is tested by an independent laboratory rather than on the supplier's word alone — HPLC for purity, mass spectrometry for identity.
Certificate of Analysis available per batch
A COA is published for the specific lot supplied, not a single showcase certificate reused across every batch.
Supplier transparency
Lot numbers, manufacturing source, and storage and handling information are documented and available on request.
Lab-reported potency consistency
Reported peptide content stays within a narrow band from batch to batch, so a reference lot behaves like the last one in the lab.
This reflects manufacturing and testing quality only. It is not a claim that any compound named here is safe or effective for human use, and nothing on Peptide Brief recommends human consumption.
View the GHK-Cu pen on RegenPep ↗Commercial disclosure: Peptide Brief is operated by the same people as RegenPep, the store these links open. We have a financial interest in purchases made there. Read the full disclosure.
Not evaluated or approved by the TGA/FDA. Not intended to diagnose, treat, cure, or prevent any disease.
How it is thought to work
GHK-Cu is reported to influence thousands of genes in microarray work, including pathways tied to collagen, anti-inflammatory signalling and tissue remodelling. Copper delivery to enzymes involved in connective-tissue chemistry is the usual biochemical explanation. Cosmetic and research uses are better documented than large oral/injectable human outcome trials.
Frequently asked
- What is GHK-Cu?
- GHK-Cu is a naturally occurring copper tripeptide. On this site it is a research reference, not a registered cosmetic or hair-loss medicine.
- What do researchers study GHK-Cu for?
- Researchers study GHK-Cu for skin rejuvenation markers, hair-follicle biology and wound quality. Many citations are in vitro or cosmetic-science papers rather than large clinical trials.
- Is GHK-Cu a medicine in Australia?
- GHK-Cu is discussed here as a research compound. This site does not present it as a TGA-approved medicine or a treatment. Product links go to RegenPep, an Australian storefront that supplies research peptide pens for laboratory use.
- Which supplier does GHK-Cu link to, and why?
- Profiles link to the matching GHK-Cu line on RegenPep. We recommend that supplier on manufacturing quality — third-party purity and identity testing, a Certificate of Analysis per batch, documented lot and sourcing information, and lab-reported potency consistency. This reflects manufacturing and testing quality only. It is not a claim that any compound named here is safe or effective for human use, and nothing on Peptide Brief recommends human consumption. Commercial disclosure: Peptide Brief is operated by the same people as RegenPep, the store these links open. We have a financial interest in purchases made there.
Peptide Brief · updated 4 September 2026. Research and educational information only.
Not evaluated or approved by the TGA/FDA. Not intended to diagnose, treat, cure, or prevent any disease.