Cosmetic peptides are peptides studied in skin and collagen research, such as the copper peptide GHK-Cu. In the research market they are reference compounds supplied for research use only.
What the category covers
Cosmetic peptides are grouped by the area they are studied in: skin, collagen, and related research. The best-known example is GHK-Cu, a copper-binding tripeptide. They are one of the functional types of peptides.

Research context
In the laboratory, these peptides are studied for their activity in skin and collagen research. As with any research peptide, they are study tools, not consumer cosmetics, and they are not intended for human use.
Browse research-grade peptides
Every Axis compound is third-party tested to 99.4%+ purity, with a certificate of analysis on every batch.
What to look for
A research-grade cosmetic peptide should ship with a batch-specific certificate of analysis. Note the distinction from finished consumer skincare, which is a separate kind of product.
Key takeaways
- Cosmetic peptides are studied in skin and collagen research.
- GHK-Cu is the best-known example.
- They are one of the functional types of peptides.
- Research-grade cosmetic peptides are supplied for research use only.
A note on research use
The peptides supplied by Axis Peptide Labs are reference compounds for laboratory and research use only. They are intended for qualified researchers working in academic, institutional, and analytical settings. They are not drugs, foods, cosmetics, or medical products, and they are not intended for human or veterinary consumption. Documented identity and documented purity are what matter most when sourcing a compound, both of which are published on the Axis certificates of analysis page.
