Palmitoyl tripeptide-1
Palmitoyl tripeptide-1 is GHK linked to a fatty-acid group for cosmetic formulations. It is chemically distinct from copper-bound GHK and from blends containing several peptides.
At a glance
- Regulatory status
- Cosmetic ingredient; cosmetic marketing or an ingredient listing is not FDA drug approval. Claims and intended use determine regulatory treatment.
- Research context
- Palmitoyl tripeptide-1 is GHK linked to a fatty-acid group for cosmetic formulations. It is chemically distinct from copper-bound GHK and from blends containing several peptides.
What this is
- Palmitoyl tripeptide-1 is GHK linked to a fatty-acid group for cosmetic formulations. It is chemically distinct from copper-bound GHK and from blends containing several peptides.
What this isn't
- A recommendation to use, prepare, combine, or administer a product
- Evidence that a related molecule or a differently formulated product has the same effects
Palmitoyl tripeptide-1 is GHK linked to a fatty-acid group for cosmetic formulations. It is chemically distinct from copper-bound GHK and from blends containing several peptides.
Changing GHK by attaching a lipid changes the ingredient under study. Research on copper tripeptide-1 therefore cannot automatically support a palmitoyl tripeptide-1 product. Both identity and formulation need to match before claims about cell signaling or matrix biology can be transferred. CIR chemical definitions.
Evidence limits
How to read the evidence
The older term palmitoyl oligopeptide is ambiguous and can refer to this molecule or to a different peptide. Claims should use the exact modern name. The evidence cited here does not isolate a human appearance benefit from palmitoyl tripeptide-1 alone, establish a collagen-regeneration treatment or show equivalence to GHK-Cu. A finished product may still be useful as skincare, but that judgment requires product-level evidence rather than borrowing another ingredient's literature.
Sources appraised 2026-10-28. Educational information; not medical advice. Study findings apply to the populations, preparations and outcomes described.
External sources and citations
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