One lot has been released. Its certificate has not been published yet. Scan the QR code on your vial, or open a lot below, to see what exists for that exact batch.
Purity and identity figures are shown only where the certificate behind them is published. Ships in 3–7 business days, US only. Free shipping over $125.
GHK-Cu
Copper-binding tripeptide
How researchers describe GHK-Cu
GHK forms a stable 1:1 complex with Cu(II); preclinical work documents modulation of MMP-2, decorin, antioxidant gene expression, and copper-dependent enzymes in cultured fibroblasts.
- Copper transport / SOD3
- MMP-2 / TIMP-2
- Decorin synthesis
Refrigerated reconstituted. Lyophilized: −20°C, light-protected.
Per-lot supplier COA (HPLC + LC-MS)
- HPLC + LC-MS laboratory analysis on every lot
- Supplier specification ≥99.4% by HPLC — the certificate for your lot is published on that lot’s page
- Sealed glass vial, butyl stopper, crimp cap
- Pickart & Margolina, 2018 — GHK regenerative actions, Int J Mol Sci
- Pickart et al., 2015 — GHK and DNA, Biomed Res Int
Common researcher questions
Is this for human use?+
No. All X Factor research peptides are RUO — sold solely for in-vitro and non-clinical preclinical research. Not for human or veterinary use, food, supplement, cosmetic, or therapeutic application.
How is purity verified?+
Every lot ships with the supplier’s per-lot COA (HPLC purity, plus LC-MS identity where applicable). COA available per lot — request via contact form.
How is it shipped?+
Lyophilized peptide in a sealed glass vial, packed in plain outer packaging, shipped from our US fulfillment partner. Blends ship with cold-pack on request.
Can I get a COA before ordering?+
Yes — contact us with the SKU and we will email the most recent lot COA. We also publish the COA vault to verified researchers post-purchase.
Restock for OOS items?+
Use the Notify-Me form on the catalog page. We email when the lot is QC-passed and live. No spam, single-use.