GHK-Cu vs BPC-157
Two of the most-studied skin and tissue-repair research peptides.
GHK-Cu and BPC-157 both appear frequently in tissue-repair research, but they work through different mechanisms — GHK-Cu as a copper-binding tripeptide, BPC-157 as a pentadecapeptide.
Side-by-side
| Attribute | GHK-Cu | BPC-157 |
|---|---|---|
| Peptide class | Copper tripeptide (GHK + copper) | Synthetic pentadecapeptide |
| Studied mechanism | Copper transport, collagen and skin signaling | FAK-paxillin, VEGFR2 and nitric-oxide pathways |
| Research focus | Skin, collagen and cosmetic-repair models | Tendon, ligament and gut-lining models |
| Form | Lyophilized powder | Lyophilized powder |
| Often studied together | Yes — combined in the GLOW blend | Yes — combined in the GLOW blend |
Which does the research favor?
They target different repair pathways — GHK-Cu leans toward skin and collagen research, BPC-157 toward connective-tissue and gut models. Many protocols study them together, the basis of the GLOW blend.
Explore both compounds
Each ships with its Certificate of Analysis. Compare, then choose the compound that fits your research question.
Full research pages
For research use only. These products are intended solely for in-vitro laboratory research and are not for human or veterinary use. Nothing here is medical advice or a therapeutic claim.