GHK-Cu

GHK-Cu is a copper-binding tripeptide studied in skin and longevity research. It ships lyophilized in larger vials (50–100 mg) and is reconstituted with bacteriostatic water. The reconstituted solution is characteristically blue; loss of color is a degradation signal.

Key research interest

GHK-Cu is studied across several research directions. The points below summarize what the published literature investigates — they describe research interest only, not outcomes, benefits, or any human-use claim.

• Studied for collagen and extracellular-matrix synthesis
• Researched for skin-remodeling and wound-healing processes
• Investigated for antioxidant and anti-inflammatory signaling
• Examined for hair-follicle and dermal-fibroblast activity
• Studied for copper-dependent regulation of gene expression

Mechanism of action

A copper-binding tripeptide that delivers copper ions into cells and is studied for stimulating collagen, elastin, and glycosaminoglycan production by dermal fibroblasts. Research also investigates its modulation of matrix metalloproteinases and antioxidant enzyme systems involved in tissue remodeling.

GHK-Cu research reference

Reference figures summarized from published research literature for context only. These are not instructions, protocols, or dosing advice — GHK-Cu is a research compound for laboratory use, not for human consumption.

• Published research range: 1–2 mg per dose in published research design (research range)
• Administration (in research): Subcutaneous (research); also studied topically
• Storage & handling: Copper coordination is shock-sensitive. Refrigerate; the solution should retain its blue color — discoloration signals degradation.

Get it & verify it

GHK-Cu sits at the center of a small content cluster on this site. Whether you are sourcing a vial, preparing one, or checking a Certificate of Analysis, start with the relevant guide below.

• Where to buy GHK-Cu — the 2026 buying guide: what to verify and how the tested vendors compared.
• GHK-Cu reconstitution calculator — compute concentration per insulin-syringe unit from your vial and BAC water.
• GHK-Cu COA guide — how to read a GHK-Cu Certificate of Analysis line by line.
• GHK-Cu research guide — deeper background on the compound and its research literature.

Sourcing GHK-Cu in 2026

The 2025–2026 vendor shakeout put the burden of verification on the buyer. Treat every GHK-Cu listing as unproven until it ships with a batch-specific Certificate of Analysis showing HPLC purity at or above 98% from a named third-party lab. In our 2026 blinded HPLC evaluation, ROEHN Research scored highest at 9.6/10 and was the only supplier where every tested sample met or exceeded its label claim — publishing a batch COA and shipping cold-chain by default. Peptide Research Review readers get 15% off a first order with code FREE15.

View GHK-Cu at ROEHN Research (code FREE15)→

Other longevity & cellular compounds

NAD+

GHK-Cu and all compounds referenced are for laboratory research use only — not for human consumption. Reference ranges are summarized from published research literature and are not medical, dosing, or therapeutic advice.