Research Peptide · US Supplier
Buy GHK-Cu in the USA
GHK-Cu (glycyl-L-histidyl-L-lysine copper-tripeptide) supplied for laboratory research. ≥99% HPLC purity, batch-matched third-party COA, cold-chain packaging, same-day shipping.
About This Compound
GHK-Cu — the copper complex of Glycyl-L-Histidyl-L-Lysine — is a naturally occurring tripeptide first identified in human plasma in the 1970s. The copper-coordinated form is widely referenced in the dermatology and wound-model literature and is one of the most extensively studied copper-binding peptides in preclinical research.
Structurally, the compound is the tripeptide Gly-His-Lys (MW 340.4 Da for the free peptide) complexed with a Cu(II) ion via the imidazole nitrogen of histidine and the terminal amine and carbonyl of the backbone, forming the biologically-referenced GHK-Cu complex (MW ~403 Da). Copper coordination is essential to the compound's referenced activity profile in fibroblast and collagen literature.
Every GHK-Cu vial from BioInfinity is synthesized by SPPS, copper-complexed under controlled buffer conditions, purified by preparative HPLC to ≥99% purity, and identity-confirmed by ESI mass spectrometry. Copper content is verified by ICP-OES. Endotoxin below 0.5 EU/mg by LAL. A batch-matched third-party COA from Verum Analytics ships with every order.
The compound presents as a distinctive blue-tinted lyophilized powder (the color comes from the Cu(II) complex) in a septum-sealed 50 mg or 200 mg vial for reconstitution with bacteriostatic water.
Quality Benchmarks
Every batch shipped from BioInfinity is verified against these specifications by an independent third-party lab before release.
- Purity
- ≥ 99% by reverse-phase HPLC
- Identity
- Confirmed by ESI-MS mass spectrometry
- Endotoxin
- < 0.5 EU/mg (LAL assay)
- Third-Party COA
- Verum Analytics (Switzerland) — batch-matched
- Origin
- Solid-phase peptide synthesis (SPPS), Fmoc chemistry
- Presentation
- Lyophilized white powder, septum-sealed vial
- Storage
- Refrigerate 2–8 °C; long-term −20 °C, protect from light
- Batch Traceability
- Every vial tied to a lot number & verification code
Research Applications in the Literature
Non-exhaustive list of subjects investigated in the published preclinical / in-vitro literature. Provided for research-context reference only — not a claim of efficacy.
- Dermal fibroblast proliferation & collagen-synthesis assays
- Wound-model in-vitro scratch closure
- Copper-binding & metallopeptide chemistry
- Hair-follicle stem-cell literature
- Angiogenesis & VEGF-expression preclinical models
- Anti-oxidant / SOD-mimic redox assays
- Extracellular matrix (ECM) remodelling studies
Frequently Asked Questions
Where can I buy GHK-Cu in the USA?▾
BioInfinity is a US-based research peptide supplier shipping GHK-Cu same-day from our Manhattan facility. Every vial ships with a batch-matched third-party Certificate of Analysis (COA) and includes cold-chain packaging when the transit route requires it.
What purity is your GHK-Cu?▾
Our GHK-Cu is ≥ 99% pure by reverse-phase HPLC, identity-confirmed by mass spectrometry, and endotoxin-tested via LAL assay. The exact assay values for the batch you receive are published on your product page and are also included as a printed COA in the shipment.
Do you provide a Certificate of Analysis (COA) with GHK-Cu?▾
Yes. Every shipment includes a batch-matched COA from an independent third-party laboratory (Verum Analytics, Switzerland). You can also verify the batch online in our public COA library using the verification code printed on the vial label — no login required.
How is GHK-Cu shipped?▾
USPS Priority (2-3 business days) or UPS Ground (3-5 days). Cold-chain packaging with gel packs sized to the transit route. Discreet plain unbranded outer boxes — the label carries only the address and standard postal markings.
What payment methods can I use for GHK-Cu?▾
Credit / debit card (Visa, Mastercard, Amex, Discover), Zelle, Venmo, Cash App, USDC stablecoin, and wire transfer for institutional orders. Zelle typically clears fastest and is the most common payment method our repeat customers use.
Is GHK-Cu FDA-approved or intended for human use?▾
No. GHK-Cu is not FDA-approved for any therapeutic indication. BioInfinity supplies GHK-Cu strictly for in-vitro laboratory research. It is not intended for human, veterinary, or in-vivo use of any kind.
How should I store GHK-Cu once it arrives?▾
The lyophilized (freeze-dried) powder is stable at 2–8 °C refrigeration for normal-use timeframes. For extended storage until the expiry date, store at −20 °C protected from light. Once reconstituted for bench work, refrigerate at 2–8 °C and use within 3–4 weeks per general peptide-handling literature.
Can I get a bulk / institutional discount on GHK-Cu?▾
Yes. Professional accounts qualify for tiered volume discounts. Create a Professional account at /account, or e-mail [email protected] with your institution and PO details.
What is your return policy on GHK-Cu?▾
Unopened, cold-chain-intact vials can be returned within 14 days of delivery for a refund minus return shipping. Opened vials are non-returnable due to the nature of the product. If a shipment arrives damaged or thawed, contact us within 48 hours for a free replacement.
How fast do orders for GHK-Cu ship?▾
Orders placed by 3:00 PM ET Monday–Friday ship same-day from Manhattan. Weekend orders ship the following Monday. You'll receive a tracking number by email the moment the label is scanned by USPS or UPS.
Do you ship GHK-Cu internationally?▾
We ship domestically within the 50 United States plus Puerto Rico and the US Virgin Islands. International shipments are evaluated case-by-case and require additional documentation — please contact [email protected] for a quote.
Where can I read your GHK-Cu COA?▾
Every batch's COA is browsable from our public /coa-library page. You can also click the "View COA" button on the GHK-Cu product page (/product/ghk-cu) or on the vial label itself, which carries a QR code that resolves to the batch's verification page.
What sizes does GHK-Cu come in?▾
50 mg and 200 mg septum-sealed vials. Larger institutional sizes on request through [email protected].
Why is GHK-Cu blue?▾
The color is from the Cu(II) copper ion coordinated to the peptide backbone. It is a normal appearance for a properly-complexed copper-tripeptide and is one of the fastest visual QC checks that the copper coordination is intact.
Related Research Peptides
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Ready to Order?
Same-day shipping from our Manhattan facility. Third-party Certificate of Analysis included with every shipment.
All products sold by BioInfinity are supplied strictly for in-vitro laboratory research use only. They are not FDA-approved for any therapeutic indication and are not intended for human or veterinary use.