GHK-Cu — Vendor Pricing & Purity Guide
Research Overview
GHK-Cu (Copper Peptide GHK) is a naturally occurring tripeptide (Glycyl-L-Histidyl-L-Lysine) with a high affinity for copper(II) ions. First identified in human plasma by Dr. Loren Pickart in 1973, GHK-Cu is one of the most extensively studied peptides in wound healing and skin biology. It is present in human blood, saliva, and urine, with plasma levels declining significantly with age — from approximately 200 ng/mL at age 20 to 80 ng/mL by age 60.
GHK-Cu's mechanism of action is remarkably broad. It modulates the expression of over 4,000 human genes — roughly 6% of the human genome. Key activities include stimulating collagen synthesis, promoting glycosaminoglycan production, increasing growth factor expression (VEGF, FGF, NGF), reducing inflammation through NF-κB suppression, and activating antioxidant defense systems. The copper ion is essential for its biological activity, serving as a cofactor for enzymes involved in tissue remodeling.
GHK-Cu is unique among research peptides in having a well-established topical cosmetic application alongside its injectable research use. It is a common ingredient in premium skincare products (sold as "copper peptide serum"), and its wound-healing properties have been validated in numerous clinical studies. The injectable form is used in research targeting systemic tissue remodeling, organ fibrosis, and anti-aging applications.
Key Research Findings
- •Modulates expression of 4,000+ human genes, with significant upregulation of DNA repair and antioxidant genes (Pickart et al., 2012)
- •Accelerated wound healing by 30% and increased collagen deposition in controlled human studies
- •Demonstrated hair growth stimulation in clinical trials, with results comparable to 5% minoxidil
- •Reduced fibrotic tissue formation in lung, liver, and kidney fibrosis animal models
- •Increased superoxide dismutase (SOD) and other antioxidant enzyme activity in treated tissues
- •Stimulated production of decorin, a proteoglycan that regulates collagen fibril assembly and reduces scarring
- •Attracted stem cells and anti-inflammatory macrophages to wound sites, accelerating tissue remodeling
Research Dosage Protocols
GHK-Cu is available in several forms for research: injectable lyophilized powder, topical cream/serum, and microneedling solutions. Each form targets different research applications.
For injectable research, GHK-Cu is reconstituted with bacteriostatic water and administered subcutaneously. Published research doses range from 1-10 mg depending on the model and application.
Topical GHK-Cu products typically contain 1-3% copper peptide concentration. In clinical skincare studies, twice-daily application for 12 weeks produced measurable improvements in skin density, firmness, and fine line reduction. Microneedling with GHK-Cu solution combines mechanical collagen induction with peptide delivery.
For research reference only. Not medical advice. Not for human consumption.
Published Research (3 studies)
- [1]GHK peptide as a natural modulator of multiple cellular pathways in skin regeneration— Pickart et al., 2012PMID: 23019015
- [2]GHK-Cu may prevent oxidative stress in skin by regulating copper and modifying expression of numerous antioxidant genes— Pickart et al., 2015PMID: 26236449
- [3]
Links go to PubMed (NIH National Library of Medicine). PeptideVerdict is not affiliated with these studies.
Price Comparison (29 products from 17 vendors)
| Vendor | Price | Stock |
|---|---|---|
| Paradigm Peptides | $26.00 $0.26/mg 100mg lyophilized | In Stock |
| Pure Rawz | $37.28 $0.37/mg 100mg vial | In Stock |
| Peptide Crafters | $45.00 $0.45/mg 100mg lyophilized | In Stock |
| Peptide Sciences | $500.00 $0.50/mg 1000mg topical | In Stock |
| Simple Peptide | $55.00 $0.55/mg 100mg lyophilized | In Stock |
| Peptide Sciences | $330.00 $0.66/mg 500mg topical | In Stock |
| Polaris Peptides | $35.00 $0.70/mg 50mg lyophilized | In Stock |
| Biotech Peptides | $186.00 $0.93/mg 200mg vial | In Stock |
| Core Peptides | $197.00 $0.98/mg 200mg vial | In Stock |
| Peptide Sciences | $200.00 $1.00/mg 200mg topical | In Stock |
| Core Peptides | $58.00 $1.16/mg 50mg vial | In Stock |
| Biotech Peptides | $64.00 $1.28/mg 50mg vial | In Stock |
| Particle Peptides | $67.99 $1.36/mg 50mg lyophilized | In Stock |
| Peptide Sciences | $70.00 $1.40/mg 50mg lyophilized | In Stock |
| Peptide Partners | $150.00 $1.50/mg 100mg | In Stock |
| BioLongevity Labs | $84.97 $1.70/mg 50mg vial | In Stock |
| BioLongevity Labs | $199.97 $66.66/mg 3mg vial | In Stock |
| Limitless Biotech | $149.99 $75.00/mg 2mg capsule | Out |
| Peptide Sciences | $165.00 $82.50/mg 2mg capsule | In Stock |
| Limitless Biotech | $81.99 spray | Out |
| Soma Chems | $49.99 vial | In Stock |
| Swiss Chems | $68.95 vial | In Stock |
| Apollo Peptide Sciences | $50.00 vial | In Stock |
| Triumphant Labs | $280.00 | In Stock |
| Triumphant Labs | $33.00 | In Stock |
| Polaris Peptides | $30.00 topical | In Stock |
| Skye Peptides | $59.00 topical | Out |
| Skye Peptides | $49.00 lyophilized | In Stock |
| Simple Peptide | $279.00 blend | In Stock |
Frequently Asked Questions
What is GHK-Cu?
GHK-Cu is a naturally occurring copper-binding tripeptide found in human blood. It modulates thousands of genes involved in tissue repair, collagen production, inflammation, and antioxidant defense. Levels decline with age.
What is the difference between GHK and GHK-Cu?
GHK is the tripeptide alone; GHK-Cu is the same peptide complexed with a copper(II) ion. The copper is essential for biological activity — GHK without copper has minimal effect. Research-grade products are sold as GHK-Cu (copper already complexed).
Can GHK-Cu be applied topically?
Yes. GHK-Cu has strong clinical evidence for topical use in wound healing and skin rejuvenation. It is a common ingredient in premium skincare products and can also be used with microneedling for enhanced penetration.
Where can I buy GHK-Cu for research?
GHK-Cu is available from research peptide vendors as injectable powder or topical formulations. Compare pricing in the table above.