GHK-Cu (Copper Peptide)
Copper peptide with powerful anti-aging, skin rejuvenation, and wound healing properties
Clinical Research Score: 4/5 — Supported by decades of peer-reviewed dermatology and wound-healing research; widely used in skincare but not an FDA-approved drug.
Categories: Skin & Hair, Anti-Aging / Longevity, Recovery & Repair
What is GHK-Cu (Copper Peptide)?
GHK-Cu is the peptide that made the beauty and biohacking communities sit up and pay attention — and it delivers on the hype. People report visibly firmer skin, faded fine lines, and a radiant "glow" that friends and family actually comment on. Crepey, thinning skin on the arms and neck starts to tighten. Hyperpigmentation fades. Hair grows in thicker.
But GHK-Cu goes far deeper than cosmetics. It's actually a master regulator of how your body builds and repairs connective tissue. Athletes use it to strengthen newly healed injuries, ensuring the repaired tissue is high-quality and resilient rather than weak scar tissue.
What makes it truly remarkable is that GHK-Cu naturally exists in your body — your levels just plummet as you age. Supplementing it is essentially reminding your cells how to build youthful, elastic tissue the way they did decades ago. It's one of the few compounds that delivers visible results you can actually see in the mirror.
How GHK-Cu (Copper Peptide) works
GHK-Cu acts as a cellular reset button for tissue quality. It stimulates your body to produce fresh collagen and elastin — the proteins responsible for skin firmness and elasticity. At the same time, it activates enzymes that break down old, damaged, scarred tissue, replacing it with new, healthy structure. It also promotes the growth of new blood vessels to nourish skin and tissue from the inside. The copper component is essential for the enzymes that crosslink collagen fibers, making them strong and resilient.
Scientific overview
GHK-Cu (Glycyl-L-Histidyl-L-Lysine Copper) is a naturally occurring copper complex that was first identified in human plasma. It has been shown to stimulate collagen synthesis, promote dermal fibroblast proliferation, and activate wound healing processes. GHK-Cu also modulates gene expression of numerous genes involved in the skin aging process, including those responsible for antioxidant defense, DNA repair, and stem cell markers.
Dosing
- Starting dose: 1 mg per day
- Common dosage range: 1-2 mg per day (injectable) or topical application
- Administration: Subcutaneous, Topical
- Half-life: ~12 hours
- Frequency: 1x daily