MV
GHK-Cu lot was outstanding
We use GHK-Cu in dermal fibroblast research. This lot performed exactly as expected — >98% purity HPLC. The COA cited the reference standard lot number. That detail is rare at this price point.
HPLC Verified
>98% Purity
COA Included
AURA Anti-Aging & Longevity
GHK-Cu
$111.96
GHK-Cu (copper peptide Gly-His-Lys) is a naturally occurring tripeptide-copper complex with a broad body of research across wound healing, collagen synthesis, anti-inflammatory activity, and gene expression regulation. Found naturally in human plasma, saliva, and urine.
| Format | Lyophilized Vial |
|---|---|
| Dosage | 50mg |
| Purity | >98% |
| Sub-Line | AURA |
Also available: GHK-Cu Capsules (50mg) →
In Stock — Overnight and 2–3 day delivery available
Product Information
GHK-Cu | Copper Peptide Gly-His-Lys — Research Grade
GHK-Cu (Glycyl-L-Histidyl-L-Lysine-Cu2+) is an endogenous tripeptide-copper complex first isolated from human plasma albumin. It has been studied across more than four decades of research, with a uniquely broad biological profile spanning tissue remodelling, antioxidant activity, and gene expression.
Mechanism of Action
- Collagen and elastin synthesis — upregulates Type I/III collagen, elastin, fibronectin, and GAG production in fibroblast cultures
- MMP modulation — simultaneously increases MMP-2 (remodelling) while inducing TIMP-1/2 (anti-degradation)
- Gene expression — studies indicate GHK modulates up to 32% of the human genome, including pathways related to inflammation, cell proliferation, and oxidative stress
- Antioxidant copper chelation — the Cu2+ complex confers SOD-like activity and protects cells from oxidative DNA damage
Research Areas
GHK-Cu is studied in wound healing, skin ageing, hair follicle biology, pulmonary fibrosis (TGF-beta1 inhibition), and neurodegeneration.
For Research Use Only. Rainbow Peptide supplies GHK-Cu exclusively for in vitro and laboratory research purposes. Not for human or veterinary use.
Frequently Asked Questions
- What is GHK-Cu?
- GHK-Cu (copper peptide Gly-His-Lys) is a naturally occurring tripeptide-copper complex with a broad body of research across wound healing, collagen synthesis, anti-inflammatory activity, and gene expression regulation. Found naturally in human plasma, saliva, and urine.
- Is GHK-Cu for sale at Rainbow Peptide?
- Yes. GHK-Cu is available for purchase with Certificate of Analysis confirming >98% HPLC purity. Every order Overnight and 2–3 day delivery available. For Research Use Only.
- What purity is your GHK-Cu?
- Rainbow Peptide's GHK-Cu is >98% pure, HPLC verified by an accredited third-party laboratory. A COA is included with every order.
- Is GHK-Cu safe for human use?
- No. GHK-Cu is strictly For Research Use Only (RUO). It is not intended for human consumption and is not intended to diagnose, treat, cure, or prevent any disease.
- How quickly does GHK-Cu ship?
- Overnight and 2–3 day delivery available. Ships in temperature-controlled packaging.
Third-Party Verified
Every Order Ships with a Certificate of Analysis
We don't just claim purity — we prove it. Every batch of GHK-Cu is independently tested by an accredited third-party laboratory before it reaches you. Your COA is linked to your specific lot number.
- HPLC purity analysis — minimum threshold >98%
- Mass spectrometry — molecular weight confirmation
- Lot number traceable to your order
- Endotoxin limits verified — safe for cell-based assays
RAINBOW PEPTIDE LABS CERTIFICATE OF ANALYSIS
Product GHK-Cu
Lot # RP-00023-A
HPLC Purity >98.0% >98.5% PASS
Mass Spec (MW) Confirmed Confirmed PASS
Endotoxin <1 EU/mg <0.5 EU/mg PASS
Visual Inspection White powder White powder PASS
What Researchers Say
Verified purchases from active research labs and scientists
5.00
★★★★★
2 verified reviews NF
Best Epithalon sourcing this quarter
Sourced Epithalon from three vendors this quarter. Rainbow Peptide had the most detailed COA and lowest endotoxin levels measured. Will be primary source for our current project.
HB
Good peptide, delivered fast
GHK-Cu arrived in 2 business days. Cold pack still active on delivery. Peptide dissolved cleanly in bacteriostatic water. COA was comprehensive. Happy with this purchase.
