Lipid-conjugated tripeptide that activates TGF-β signaling to stimulate collagen synthesis. Studied alongside Matrixyl (palmitoyl pentapeptide-4) for complementary anti-aging dermatology research. Part of the Matrixyl 3000 combination.
Topical penetration via palmitate; local dermal activity, minimal systemic exposure
SKUs
1
Evidence
Moderate Evidence
Palmitoyl Tripeptide-5 is a synthetic peptide used primarily in topical cosmetic formulations for anti-aging skin care. It is designed to stimulate collagen synthesis and reduce the appearance of wrinkles by mimicking a signaling sequence that activates TGF-beta pathways in skin cells. Like other cosmetic peptides, it has a research base primarily from small cosmetic studies.
Collagen Stimulation Research
Palmitoyl Tripeptide-5 was developed based on the sequence of thrombospondin-1, a protein that activates TGF-beta — a growth factor that stimulates fibroblasts to produce collagen. In vitro studies showed it increased collagen production in cultured skin cells.
Wrinkle Reduction
Small clinical studies, typically industry-sponsored, have examined topical formulations containing Palmitoyl Tripeptide-5 for changes in skin smoothness and wrinkle depth. Some studies report modest improvements in skin texture and wrinkle appearance with regular use.
Combination Skincare Research
Palmitoyl Tripeptide-5 is almost always studied in combination skincare products alongside other peptides and actives, which makes it difficult to isolate its individual contribution to any observed effects.
In vitro studies show increased collagen synthesis in cultured skin cells.
Small clinical studies report modest wrinkle depth reductions with topical formulations.
Most research is industry-sponsored and involves combination products.
No systemic activity or effects beyond the topical application site.
Research on Palmitoyl Tripeptide-5 is limited to cell culture and small cosmetic studies, with no independent large randomized controlled trials. Most research is conducted by companies selling products containing the ingredient. Effects are cosmetic — surface-level changes in appearance rather than structural tissue changes. It is a cosmetic ingredient, not a drug.
Collagen gives skin its firmness and structure, and its production declines with age. TGF-beta is a signaling protein that tells skin fibroblasts to make more collagen. Palmitoyl Tripeptide-5 is designed to mimic a fragment of thrombospondin-1, a protein that naturally activates TGF-beta signaling in the skin. By delivering this peptide topically, the goal is to trigger fibroblasts to increase collagen production locally. The palmitoyl fatty acid chain attached to the peptide is designed to improve its ability to penetrate into the outer layers of skin from a cream or serum.
Palmitoyl Tripeptide-5 is well-tolerated in cosmetic use. It is not absorbed systemically at concentrations used in cosmetic products. Skin irritation is rare. It is a cosmetic ingredient regulated as such — not evaluated by the FDA for effectiveness as a drug would be.
Moderate Evidence
This compound has been studied in Phase 1 or Phase 2 human trials. Evidence is encouraging but more large-scale trials are needed.
Published Research Ranges
Topical 2–10ppm in research formulations; clinical concentration in Matrixyl 3000 formulations
Research Context Only: These are ranges reported in published scientific studies for educational reference. They are not dosing recommendations. This is not medical advice. Always consult a qualified healthcare professional.
Sources listed here are from the platform research library. All links open the original publication. No citations are generated by AI.
Palmitoyl Tripeptide-5 Stimulates Collagen Synthesis via TGF-beta Pathway Activation
International Journal of Cosmetic Science • 2009
• DOI: 10.1111/j.1468-2494.2009.00509.x
Oral Intake of Low-Molecular-Weight Collagen Peptide Improves Hydration, Elasticity, and Wrinkling in Human Skin: A Randomized, Double-Blind, Placebo-Controlled Study
Research Education Only: This profile is for educational purposes only. All information is sourced from published scientific literature. This is not medical advice. Not for human consumption. Consult qualified medical professionals for any health decisions.
We use cookies to enhance your research experience and analyze platform usage. By continuing, you agree to our Cookie Policy.