GHK-Cu / Copper Peptide

What Is GHK-Cu?

GHK-Cu (Glycyl-L-Histidyl-L-Lysine Copper) is a naturally occurring copper-binding tripeptide found in human plasma, saliva, and urine. First identified in 1973, GHK-Cu gained attention when researchers discovered that plasma from young individuals (age 20–25) could stimulate old liver cells to synthesise proteins like young cells – and that GHK-Cu was the active component responsible for this rejuvenating effect.

Your body naturally produces GHK-Cu, but levels decline dramatically with age: from approximately 200 ng/ml at age 20 to just 80 ng/ml by age 60 – a 60% reduction. This decline correlates closely with the visible signs of aging: thinning skin, slower wound healing, reduced collagen production, and declining hair quality. Supplementing with GHK-Cu aims to restore youthful concentrations and reactivate the tissue remodelling processes that slow with age.

The Science Behind GHK-Cu’s Anti-Aging Effects

• Collagen and elastin synthesis: GHK-Cu is one of the most potent natural stimulators of collagen (types I, III, and V) and elastin production. It increases collagen synthesis by up to 70% in skin fibroblasts, directly improving skin firmness, thickness, and elasticity.
• Glycosaminoglycan production: It stimulates the production of proteoglycans and glycosaminoglycans (including hyaluronic acid), the molecules that hold moisture in the skin and give it a plump, hydrated appearance.
• Wound healing acceleration: GHK-Cu attracts immune cells and fibroblasts to wound sites, promotes blood vessel formation, and increases the rate of wound closure. It also modulates metalloproteinases (MMPs) to balance tissue remodelling.
• Anti-inflammatory gene modulation: Remarkably, GHK-Cu has been shown to modulate the expression of over 4,000 genes – resetting gene expression patterns toward a healthier, more youthful profile. It suppresses genes associated with chronic inflammation while activating those involved in tissue repair.
• Hair follicle support: GHK-Cu increases hair follicle size, stimulates growth, and prolongs the anagen (growth) phase. It is widely used in topical hair and scalp treatments.
• Antioxidant and DNA repair: The copper ion in GHK-Cu is essential for the function of superoxide dismutase (SOD), a critical antioxidant enzyme. GHK-Cu also enhances DNA repair mechanisms in skin cells damaged by UV exposure.

Topical vs Injectable GHK-Cu

GHK-Cu is effective through both topical application and subcutaneous injection, but the benefits differ. Topical GHK-Cu primarily benefits the skin: reducing fine lines, improving firmness, fading hyperpigmentation, and accelerating wound healing at the application site. Injectable GHK-Cu provides systemic benefits: whole-body collagen support, systemic anti-inflammatory effects, and support for internal tissue remodelling. Many users do both – topical for targeted skin benefits and injectable for system-wide rejuvenation.

Who Is GHK-Cu For?

GHK-Cu is ideal for anyone concerned with skin aging (fine lines, loss of firmness, dullness), individuals recovering from skin injuries or surgical procedures, those experiencing age-related hair thinning, and anyone over 30 who wants to proactively support their body’s declining natural GHK-Cu production.