Last updated: May 2026
Summary: GHK-Cu is a copper-bound tripeptide (Gly-His-Lys complexed with copper) supplied as a lyophilized powder for research use. PeptideDropship supplies research-grade GHK-Cu to verified B2B partners under strict research-use-only labeling. 99%+ purity verified by HPLC, third-party COA per batch, no MOQ, US 24-hour fulfillment, and white-label options available. For research use only — not for human consumption.
Technical specifications
| Parameter | Value |
|---|---|
| Peptide name | GHK-Cu (Copper Tripeptide-1) |
| Type | Copper-bound tripeptide |
| Sequence | Gly-His-Lys (bound to Cu²⁺) |
| Molecular formula | C₁₄H₂₂N₆O₄·Cu |
| Molecular weight | ~403.92 g/mol (peptide-Cu complex) |
| CAS number | 89030-95-5 |
| Form | Lyophilized powder (characteristic blue-teal color from copper) |
| Standard pack sizes | 50 mg, 100 mg, 200 mg vials |
| Storage | −20°C lyophilized; 2–8°C after reconstitution; protect from light |
Manufacturing and quality control
GHK-Cu is produced via solid-phase synthesis of the GHK tripeptide followed by controlled copper complexation. Every batch is independently verified by a third-party laboratory before release.
- Identity: mass spectrometry confirms the peptide-copper complex composition
- Purity: reverse-phase HPLC quantifies peptide purity (99%+ standard)
- Copper content: ICP-MS or atomic absorption spectroscopy confirms stoichiometric copper binding
- Water content: Karl Fischer titration
- Endotoxin: LAL test available on request
The full COA ships with every order and documents the specific analytical methods, batch number, and lab partner.
Wholesale availability
- No minimum order quantity
- Tiered pricing — per-unit cost decreases with monthly volume
- 24-hour fulfillment from US-based warehouse
- API integration available
White-label and private-label options
- Generic — PeptideDropship branding
- White-label — your branding
- Private-label — custom pack sizes (common for GHK-Cu given larger typical batch sizes used in research applications)
See the white-label vs. private-label guide.
Packaging, shipping, and storage
GHK-Cu ships as lyophilized powder in sealed amber vials. Amber glass is used specifically because GHK-Cu is light-sensitive and the copper complex can degrade under prolonged UV exposure. Each shipment includes the batch-specific COA.
Cold-chain shipping is available. In lyophilized form, GHK-Cu is stable at room temperature for short-duration transit but should be stored at −20°C for long-term stability. After reconstitution, store at 2–8°C and protect from light.
Compliance and labeling
GHK-Cu is supplied to verified B2B partners exclusively for research use under strict research-use-only labeling. Resellers and end users are responsible for maintaining research-use-only labeling, the FDA disclaimer, and compliance with state, local, and international regulations. PeptideDropship does not supply GHK-Cu for cosmetic, personal-care, or consumer applications — partners offering such products must verify their own regulatory pathway and source appropriately.
FAQ
Why does GHK-Cu have a distinctive color?
The blue-teal color comes from the copper(II) ion complexed with the GHK tripeptide. The color is a useful visual confirmation that copper is present in the expected stoichiometric ratio. A faded or off-color appearance can indicate degradation, oxidation, or improper storage.
What pack sizes are available?
Standard pack sizes are 50 mg, 100 mg, and 200 mg. Larger lyophilized pack sizes are common for GHK-Cu because research applications typically use higher masses than other peptides. Custom sizes are available through private-label fulfillment.
How is GHK-Cu stored?
Lyophilized at −20°C, protected from light. After reconstitution, store at 2–8°C, protect from light, and use within the documented stability window for the research application.
Is the copper content documented in the COA?
Yes. The COA includes verified copper stoichiometry through ICP-MS or atomic absorption spectroscopy, in addition to standard peptide analytical data.
What’s the minimum order?
None. Single-vial wholesale orders are supported.
Get started
Apply for verified partner access. See the peptide dropshipping guide for the business model.
These statements have not been evaluated by the FDA. Not intended to diagnose, treat, cure, or prevent any condition. For research purposes only — not for human consumption. PeptideDropship sells research-grade peptides exclusively to verified B2B partners under research-use-only labeling.