GHK-Cu Products
Fewer fine lines. Firmer skin. Fuller-looking hair.
Two clinically concentrated copper peptide formulations delivering visible results backed by research published in the International Journal of Molecular Sciences.
Pure GHK-Cu without dilution.
GHK-Cu (glycyl-L-histidyl-L-lysine) is a copper-binding tripeptide studied for its role in tissue repair, wound healing, and collagen production. Our Face Tonic and Hair Tonic deliver this copper peptide at concentrations referenced in clinical research - no filler dilution, no unnecessary additives. Read our complete guide to GHK-Cu research.
What Is GHK-Cu?
GHK-Cu (glycyl-L-histidyl-L-lysine) is a copper-binding tripeptide - a small protein fragment composed of three amino acids (glycine, histidine, and lysine) complexed with a copper ion. This naturally occurring copper peptide was first discovered in human blood plasma and has been studied extensively for its biological activities.
Research published in the International Journal of Molecular Sciences examined GHK-Cu for its role in tissue repair, wound healing processes, and collagen production pathways. The research describes how this copper peptide interacts with various cellular processes involved in skin regeneration, tissue remodeling, and extracellular matrix support.
As we age, natural levels of GHK Cu in our bodies decline significantly. Our GHK-Cu products - Face Tonic and Hair Tonic - deliver this copper peptide at concentrations referenced in clinical research, offering a topical approach to support skin health and hair growth through mechanisms studied in published literature. Learn more about GHK-Cu research.
Why GHK-Cu Concentration Matters
Many copper peptide products dilute GHK-Cu with hyaluronic acid, vitamin C, botanical extracts, or other ingredients in the same formulation. The logic seems straightforward: if each ingredient offers benefits, combining them must be better. However, this approach reduces the copper peptide concentration actually studied in clinical research.
The IJMS research on GHK-Cu examined this copper-binding tripeptide at specific concentrations, not as part of multi-ingredient blends with hyaluronic acid or vitamin C. When you mix multiple actives in one bottle, you're diluting what researchers actually studied for effects on tissue repair, wound healing, and collagen synthesis.
PLU Face Tonic and Hair Tonic deliver GHK-Cu at clinical concentrations without filler dilution. Each formulation pairs GHK Cu with one complementary peptide studied for synergistic effects - Matrixyl 3000 for skin health, Acetyl Tetrapeptide-3 for hair growth. This focused approach maintains the copper peptide levels examined in published literature on collagen production and cellular pathways.
If you want the benefits of vitamin C, hyaluronic acid, or other actives, layer them separately after applying Face Tonic or Hair Tonic. This way, you maintain the GHK-Cu concentration while still using other skincare products in your routine. Read more about GHK-Cu clinical concentrations.
Our GHK-Cu Products
Two copper peptide formulations delivering GHK-Cu at clinical concentrations - one for skin, one for hair. Both can be used together for comprehensive results.
Face Tonic - GHK-Cu for Skin
GHK-Cu combined with Matrixyl 3000 for skin health and skin elasticity. Research on copper peptides describes their role in tissue repair, collagen production, and skin regeneration. Supports the appearance of firmer skin, fewer fine lines, and improved skin texture. Clinical concentrations without dilution.
Hair Tonic - GHK-Cu for Hair
GHK-Cu combined with Acetyl Tetrapeptide-3 for hair growth and hair follicles. Research examined copper peptides for effects on scalp circulation and hair loss. Supports the appearance of fuller-looking hair, improved hair density, and healthier scalp. Clinical concentrations for scalp treatments and scalp care.
Both GHK-Cu products can be used together as a complete copper peptide system. Total daily application time: under 60 seconds.
How GHK-Cu Copper Peptides Work
The IJMS research on GHK-Cu describes multiple biological activities of this copper-binding tripeptide. These mechanisms, studied in clinical literature, form the scientific foundation for topical copper peptide applications in skin care and hair care.
Tissue Repair & Wound Healing
Research published in the International Journal of Molecular Sciences examined GHK-Cu for its role in wound healing processes and tissue repair. The literature describes how this copper peptide interacts with cellular pathways involved in tissue remodeling and cellular repair mechanisms. Our GHK-Cu products deliver these studied concentrations topically.
Collagen Synthesis & Skin Elasticity
The IJMS research describes GHK-Cu's involvement in collagen production pathways and support for connective tissue and extracellular matrix processes. These mechanisms studied in clinical literature may affect skin elasticity appearance, skin texture, and overall skin health when copper peptides are applied at researched concentrations.
Hair Follicles & Blood Circulation
Published research on copper peptides examined their effects on blood circulation and blood flow to hair follicles. The literature describes how GHK Cu may support scalp circulation and cellular processes involved in hair growth. Our Hair Tonic delivers this copper peptide for scalp treatments at clinical concentrations.
Read our complete guide to GHK-Cu research and clinical studies →
Common Questions About GHK-Cu
What is GHK-Cu and how does it work?
GHK-Cu is a copper-binding tripeptide composed of three amino acids complexed with copper ions. Research published in the International Journal of Molecular Sciences describes how copper peptides interact with gene expression and cellular processes involved in tissue healing. The literature examines GHK-Cu's role in supporting connective tissue, influencing cellular pathways, and affecting various biological activities. Our topical formulations deliver copper peptides at concentrations studied in clinical research for skin care and hair care applications.
Is GHK-Cu the same as peptide therapy or peptide injections?
No. Peptide therapy typically refers to peptide injections administered under clinical oversight, often in regenerative medicine contexts. Our GHK-Cu products are topical formulations - you apply copper peptides directly to skin or scalp, not through injections. While peptide injections may be used in medical settings, our Face Tonic and Hair Tonic deliver copper peptides topically at concentrations studied for cosmetic use. This topical approach avoids the complications and clinical requirements of peptide therapy through injections.
What makes GHK-Cu different from other copper peptides?
GHK-Cu is a specific copper-binding tripeptide that delivers copper ions in a form studied extensively in published research. The literature describes how these copper ions interact with growth factors and cellular processes. While other copper peptides exist, GHK-Cu has the most extensive research backing for topical applications. The IJMS literature examined this specific tripeptide structure for its biological activities, making it distinct from generic copper peptides or other peptide complexes.
Can GHK-Cu copper peptides help with hair loss?
Research on copper peptides examined their effects on blood flow to hair follicles and scalp circulation. While we sell cosmetic products (not FDA-approved drugs for treating hair loss), the published literature describes GHK-Cu's role in cellular processes that may support the appearance of hair density. Our Hair Tonic delivers copper peptides as a hair serum at clinical concentrations for scalp treatments. Many users apply it as part of their hair and skin care routine to support the appearance of fuller-looking hair.
How do I use GHK-Cu products in my skin care routine?
Apply copper peptides to clean skin or scalp before other products. For Face Tonic, use it as the first step in your skin care routine after cleansing - this allows the copper peptides to absorb without interference. Wait 30 seconds, then layer other skin care products like hyaluronic acid or moisturizers if desired. For Hair Tonic, apply directly to scalp as part of your hair and skin care routine. Both topical formulations work morning and/or night, taking under 60 seconds total for the complete system.
Can I use GHK-Cu with vitamin C or hyaluronic acid?
Yes, but apply them separately. Use Face Tonic or Hair Tonic first to deliver copper peptides at full concentration, then layer hyaluronic acid, vitamin C, or other products after the peptides absorb. Research examined copper peptides as focused compounds, not mixed with other actives. Layering separately maintains the clinical concentrations studied while still allowing you to use hyaluronic acid or other ingredients in your routine.
How long does it take to see results from copper peptides?
Most users report visible improvements within 6-8 weeks of consistent daily use. Research on copper peptides suggests they work gradually through cellular processes and gene expression that affect tissue healing and skin rejuvenation. For skin cell turnover and connective tissue support, the IJMS literature examined progressive improvements over extended timeframes. Apply Face Tonic or Hair Tonic once or twice daily for optimal results from these topical formulations.
Are GHK-Cu products safe for all skin types?
Our copper peptides formulations are designed to be compatible with various skin types. By excluding potentially irritating ingredients from the same bottle, we minimize sensitivity concerns. The research describes copper peptides as having been studied across different topical applications. If you have specific concerns, start with once-daily application and monitor how your skin responds to the copper peptides before increasing frequency.
What does the research say about GHK-Cu for skin rejuvenation?
Research published in the International Journal of Molecular Sciences examined GHK-Cu copper peptides for their role in skin rejuvenation processes. The literature describes how copper peptides interact with gene expression, cellular processes, and connective tissue that affect skin appearance. While our products are cosmetic formulations (not regenerative medicine treatments), they deliver the same copper-binding tripeptide studied in this research through topical application. Read our complete guide to GHK-Cu research.
Why choose topical GHK-Cu over other delivery methods?
Topical formulations deliver copper peptides directly where you want them - skin or scalp - without the complications of peptide injections or peptide therapy requiring clinical oversight. Research examined GHK-Cu in topical applications for hair and skin care, demonstrating effectiveness through this delivery method. Our Face Tonic and Hair Tonic provide copper peptides at studied concentrations without needles, medical appointments, or the risks associated with injectable peptide therapy.