GHK-Cu
Multi-UseAlso known as: Copper Peptide, Copper Tripeptide-1
Well-StudiedWhat is GHK-Cu?
One of the most researched peptides in cosmetic science. Naturally occurring in human plasma, GHK-Cu declines with age and is involved in wound healing, collagen synthesis, and potentially hair growth.
How it works
Naturally occurring tripeptide-copper complex that declines significantly with age. Activates tissue remodeling and repair genes, promotes angiogenesis, and stimulates production of collagen, elastin, and glycosaminoglycans.
What marketers claim
- ▸reverses aging completely
- ▸regrows hair in everyone
- ▸heals all wounds
- ▸miracle peptide with no downsides
What evidence supports
- ✓promotes wound healing and tissue repair in multiple studies
- ✓stimulates collagen and glycosaminoglycan synthesis
- ✓may support hair follicle health and growth in some studies
- ✓antioxidant and anti-inflammatory properties documented
Best for
Safety notes & concerns
- ⚠can cause a purging-like skin response initially
- ⚠not recommended immediately after aggressive resurfacing procedures
- ⚠blue or green product color is normal due to the copper complex
- ⚠sourcing and stability vary widely across products
Pairs well with
Use caution with
Products containing GHK-Cu
NIOD
Copper Amino Isolate Serum 3:1
One of the highest disclosed concentrations of GHK-Cu available in a retail product; formulated specifically around copper peptide stability and bioavailability
The Ordinary
Multi-Peptide Serum for Hair Density
Budget scalp peptide serum combining three researched hair-density complexes (Procapil, REDENSYL, AnaGain) with GHK-Cu; one of the most affordable hair peptide products available
VEGAMOUR
GRO Hair Serum
Plant-based vegan hair serum combining phyto-actives and synthetic peptides; marketed for hair thinning reduction and density improvement with clinical data from brand-sponsored studies
SkinMedica
TNS Advanced+ Serum
The most clinically referenced physician-dispensed growth factor + peptide serum; SkinMedica's flagship product with extensive dermatologist recommendations and independent peer-reviewed publications
iS Clinical
Pro-Heal Serum Advance+
Professional-grade vitamin C + retinol + GHK-Cu combination serum; one of the few products deliberately combining these three actives with stabilisation chemistry to prevent copper-ascorbic acid destabilisation
Last updated: 2025-03-01
Medical Disclaimer
The information on this site is for educational and informational purposes only. It is not intended as medical advice and should not be used to diagnose, treat, or prevent any condition. Always consult with a qualified healthcare professional before starting any new supplement, peptide, or treatment protocol.