GHK-Cu

GHK-Cu is a research-grade copper tripeptide research peptide available at For Peptides with ~99% HPLC purity, independent 3rd-party lab testing, and >90% fill volume. Every vial ships from our USA facility and is intended strictly for in vitro laboratory research — not for human or veterinary use. Explore other regenerative research peptides in our regenerative research collection.

GHK-Cu (Copper Tripeptide-1) is a naturally-occurring tripeptide that binds copper(II) with high affinity. In research models, GHK-Cu has been studied for its effects on collagen and glycosaminoglycan synthesis, antioxidant enzyme expression, and modulation of genes associated with extracellular matrix remodeling.

GHK-Cu is widely used in skin-aging research, wound-healing models, and studies of fibroblast gene expression. It is one of the most-studied copper-binding peptides in the dermatology literature.

Technical Specifications

• Molecular Formula: C14H24N6O4·Cu
• Molecular Weight: 402.93 g/mol
• Sequence: Gly-His-Lys + Cu(II)
• CAS Number: 89030-95-5
• Color: Blue (copper complex)
• Amount per Vial: 50 mg or 100 mg

Handling & Storage

• Lyophilized powder: Store at -20°C for long-term stability.
• After reconstitution: Store at 2-8°C and use within 30 days.
• Reconstitution: Use bacteriostatic water or sterile water for injection.
• Avoid: Repeated freeze-thaw cycles and direct light exposure.

Quality & Testing

• Purity: ~99% by HPLC
• Testing: Third-party independent laboratory analysis
• Fill Volume: >90% guaranteed
• Shipping: Cold-chain compatible, ships from USA

Frequently Asked Questions

Why is GHK-Cu blue?
The blue color comes from the copper(II) ion chelated by the GHK tripeptide.

Purity?
~99% HPLC with third-party COA.

Can GHK-Cu be reconstituted with bac water?
Yes. Bacteriostatic water is commonly used; the solution remains blue.

Why Researchers Choose For Peptides GHK-Cu

• ~99% HPLC purity verified via high-performance liquid chromatography on every batch
• Independent 3rd-party lab testing with Certificate of Analysis (COA) available on request
• >90% fill volume guarantee — you get the peptide mass you paid for
• Ships from USA — fast domestic fulfillment, no international customs delays
• Real scientific support — questions answered by researchers, not a call center

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