Reviewed by Peptide Treatments Medical Advisory Board (Medical Advisory Board)
GHK-Cu: Research & Evidence
Emerging EvidencePublished research, clinical trial data, and evidence grading for GHK-Cu across studied indications.
Back to GHK-Cu overviewResearch Summary
GHK-Cu is one of the better-evidenced peptides with multiple human studies showing benefits for skin aging and wound healing. However, evidence is primarily 'cosmetic-grade' — small, often industry-funded studies using topical application. The copper-bound form is essential; GHK without copper has different properties.
Evidence by Indication (3 indications)
| Indication | Tier | Trials | Summary |
|---|---|---|---|
| Wound healing | Tier C | 3 | Topical application accelerates wound closure in small trials |
| Skin aging / rejuvenation | Tier C | 4 | Increases collagen synthesis and skin thickness in controlled studies |
| Hair loss | Tier D | 1 | Preclinical evidence suggests follicle stimulation; human data limited |
Graded using our evidence tier methodology.
Citations (5 sources)
- 1. Immunostimulatory Hydrogel with Synergistic Blockage of Glutamine Metabolism and Chemodynamic Therapy for Postoperative Management of Glioblastoma. Study
(2025), Advanced science (Weinheim, Baden-Wurttemberg, Germany)
- 2. An Assessment of the Safety, Efficacy, and Tolerability of a Novel Scalp Treatment Regimen Combining a Hydroxy Acid-Based Scrub and Copper Tripeptide Serum in the Management of Seborrheic Dermatitis in Adults. Study
(2024), Cureus
- 3. Microneedle-Mediated Delivery of Copper Peptide Through Skin. Study
(2015), Pharmaceutical research
- 4. Using Aldara, copper peptide, and niacinamide for skin care. Study
(2004), Aesthetic surgery journal
- 5. DNA- and protein-scission activities of ascorbate in the presence of copper ion and a copper-peptide complex. Study
(1983), Journal of biochemistry