GHK-Cu
Skin + Glow
The science behind the glow.
A copper-binding tripeptide that connects skin research with the biology of the extracellular matrix—the framework surrounding our cells.
Evidence reviewed October 2, 2026 · Educational overview
01 / THE COMPOUND
What is it?
GHK is a short chain of three amino acids originally isolated from human plasma. When bound to copper, it is called GHK-Cu. Researchers study this complex in models of connective tissue and repair. [1–3]
02 / THE OPPORTUNITY TO LEARN
Why researchers are interested
Collagen, in context
Cultured fibroblasts exposed to GHK-Cu produced more collagen in a foundational laboratory study. That makes collagen regulation an interesting research question—not a demonstrated cosmetic result for this inventory. [1]
The matrix around the cell
Separate cell experiments examined glycosaminoglycans, molecules that form part of the extracellular matrix. The response varied with experimental conditions. [2]
Repair biology
Rat wound experiments reported changes in connective-tissue accumulation. Animal wound models cannot establish healing or recovery benefits in people. [3]
03 / RESEARCH INTEREST
Follow the questions.
04 / THE BIOLOGY
How it works
- Copper-binding peptide
- Fibroblast / matrix activity
- Connective-tissue research
The selected experiments link GHK-Cu exposure to collagen and other matrix components. This is a model of research observations, not a complete receptor pathway or a prediction of what a finished product will do. [1–3]
05 / PUBLISHED FINDINGS
What research has observed
Laboratory
Maquart and colleagues (1988) observed increased collagen synthesis in cultured fibroblasts. A later study examined glycosaminoglycan synthesis in human fibroblast cultures. Human cells in a dish are laboratory evidence, not a human clinical trial. [1,2]
Animal / preclinical
A 1993 rat study found increased connective-tissue components in experimental wound chambers. Its model and experimental exposure differ from everyday skin use. [3]
06 / EVIDENCE SNAPSHOT
Different evidence. Different conclusions.
These descriptive labels summarize the selected evidence. They are not numerical quality scores or product ratings.
- Laboratory / animal
- Mechanistic and wound-model findings
- Human research
- Selected evidence does not establish clinical outcomes
- Therapeutic use
- No therapeutic approval claimed for this inventory
07 / OPEN QUESTIONS
What we still don’t know
Which formulations reproduce these findings in people, their meaningful clinical effects, and long-term safety remain unresolved by the studies selected here. No hair-growth, wound-healing, or skin-rejuvenation result is promised.
08 / GO TO THE SOURCE
Selected research
09 / TRACEABILITY
Testing & documentation
Published studies are not a Certificate of Analysis for our inventory.
No verified lot-specific reports have been supplied for this compound. Identity, assay, purity, laboratory, testing date, sterility, endotoxin, and expiration must be supported by the applicable record before a claim is shown.
10 / RESEARCH FORMATS
From the inventory
Two inventory entries: 50 and 100. Units and finished-product formulation await label confirmation; neither is presented as an available strength.
Inventory references: GHKCU-50 · GHKCU-100
Membership does not change the evidence or imply that ordering is available. Research information is not medical advice or a protocol for human use.