GHK-CU 50mg / 100mg

Buy high-purity GHK-Cu (copper peptide) in Australia (50mg / 100mg). Third-party lab tested at >99% purity. Australian-domestic shipping, AUD pricing, supplied for laboratory research use only.

About GHK-Cu

GHK-Cu is a naturally occurring copper-binding tripeptide complex consisting of the amino-acid sequence Glycyl-L-Histidyl-L-Lysine bound to a divalent copper ion (Cu²⁺). First isolated from human plasma in the 1970s, GHK-Cu is one of the most extensively studied copper peptides in the dermatology, regenerative biology and gene-expression literature. Optic Labs supplies GHK-Cu as a high-purity lyophilised powder in 50mg and 100mg vials, packaged for in vitro and preclinical laboratory research. Each batch is independently HPLC-tested for purity and identity, with certificates of analysis available on request.

Published research has investigated GHK-Cu in models of collagen and elastin synthesis, fibroblast activity, antioxidant gene expression, copper transport, and skin-regeneration signalling. Optic Labs supplies the compound for laboratory research only — not for human consumption, clinical use, or any therapeutic application.

Product specifications

• Compound: GHK-Cu (Copper tripeptide-1)
• CAS number: 89030-95-5
• Molecular formula: C₁₄H₂₃CuN₆O₄
• Molecular weight: ~402.91 g/mol
• Sequence: Glycyl-L-Histidyl-L-Lysine + Cu²⁺
• Form: Lyophilised powder (characteristic blue colour from copper coordination)
• Purity: >99% by HPLC
• Available sizes: 50mg vial / 100mg vial
• Storage: Store unreconstituted vials at 2–8°C; protect from light. Reconstituted solution stored at 2–8°C and used within 30 days.
• Origin: Manufactured to research-grade specifications, third-party HPLC verified
• Shipping: Australia-wide domestic dispatch from Sydney, NSW

Research background

GHK was first identified in 1973 by Pickart as a factor in human plasma that altered the gene expression of cultured liver cells. The peptide naturally chelates Cu²⁺ with high affinity, forming the GHK-Cu complex. Published preclinical studies have examined GHK-Cu in the context of:

• Type I and III collagen synthesis in dermal fibroblast cultures
• Elastin, glycosaminoglycan and decorin production
• Antioxidant defence gene expression (SOD, catalase pathways)
• Copper transport and lysyl oxidase activity
• Hair-follicle stem cell and skin barrier research
• Genome-wide gene expression modulation studies

For a more detailed research summary with study citations, see our GHK-Cu copper peptide guide, our collagen and skin regeneration research article, and our anti-ageing peptide research article. Researchers working with reconstitution should also reference our peptide reconstitution guide.

Reconstitution and handling

GHK-Cu is supplied as a lyophilised powder and must be reconstituted with bacteriostatic water before use in any laboratory protocol. Typical reconstitution volumes for a 50mg vial range from 2mL to 5mL of bacteriostatic water (yielding 25mg/mL or 10mg/mL respectively); a 100mg vial reconstituted in 5mL yields 20mg/mL. Exact volumes should be calculated for each protocol — our reconstitution calculator guide walks through the maths. Reconstituted solution typically displays a characteristic blue colour from the copper coordination. Store refrigerated at 2–8°C and protect from light.

Commonly stacked research peptides

GHK-Cu is frequently studied alongside other regenerative and skin-related peptides in published research. Researchers may also be interested in:

• BPC-157 — tissue repair and angiogenesis research
• TB-500 — cell migration and wound-healing research
• GLOW Stack — pre-mixed BPC-157 + GHK-Cu + TB-500 combination
• KLOW Stack — adds KPV for inflammatory pathway research
• Epithalon — telomere and longevity research

Frequently asked questions

Is GHK-Cu legal in Australia?

GHK-Cu is not currently approved by the Therapeutic Goods Administration (TGA) for therapeutic use in Australia. Optic Labs supplies GHK-Cu strictly as a research chemical for in vitro and preclinical laboratory research — not for human consumption, clinical use or any therapeutic application. For a detailed overview, see our guide to peptide legality and TGA compliance in Australia.

What is GHK-Cu?

GHK-Cu is a naturally occurring tripeptide-copper complex (Glycyl-L-Histidyl-L-Lysine bound to Cu²⁺) originally isolated from human plasma. In published research it has been investigated for its effects on collagen synthesis, fibroblast activity, antioxidant gene expression and skin-regeneration signalling. See our GHK-Cu copper peptide guide for background.

What is the difference between GHK and GHK-Cu?

GHK is the bare tripeptide. GHK-Cu refers to the same tripeptide bound to a divalent copper ion. Most published research and the commercially available research-grade material is supplied as the copper-bound complex, which is the biologically active form in published cell-culture and animal studies.

Why is reconstituted GHK-Cu blue?

The blue colour comes from the copper(II) ion coordinated to the peptide. This is normal and expected for a properly formulated GHK-Cu complex. Loss of colour over time can indicate degradation or copper dissociation, so storage protocols matter.

How is GHK-Cu supplied?

Optic Labs supplies GHK-Cu as a lyophilised powder in glass research vials, available in 50mg and 100mg sizes. Each vial is sealed and shipped with a tamper-evident seal. Certificates of analysis showing HPLC purity testing are available on request.

How should reconstituted GHK-Cu be stored?

Unreconstituted vials should be stored at 2–8°C and protected from light. Once reconstituted, the solution should be refrigerated at 2–8°C, kept away from light, and used within approximately 30 days. For full storage protocols, see our peptide storage guide.

Where does Optic Labs ship to?

Optic Labs ships Australia-wide from Sydney, NSW. Standard dispatch is next business day on orders received before the daily cut-off. International shipping is not currently offered.

Legal disclaimer

All products on this site are supplied for laboratory research, development or analytical use only. They are not for human consumption, clinical use, or any diagnostic, cosmetic or veterinary application. These products and statements have not been evaluated by the Therapeutic Goods Administration (TGA) or the APVMA and are not intended to diagnose, treat, cure or prevent any disease. Optic Labs is not a compounding pharmacy or manufacturing facility as defined under the Therapeutic Goods Act 1989, and is not a registered provider of scheduled medicines or therapeutic goods.