Palmitoyl Pentapeptide (Matrixyl) Stimulates Collagen and Glycosaminoglycan Synthesis in Skin Fibroblasts
Lintner K, Peschard O
International Journal of Cosmetic Science · Vol. 22(3) · pp. 207–218 · 2000
In vitro and clinical study demonstrating that Matrixyl (palmitoyl pentapeptide-4) stimulates collagen I, III, and IV synthesis along with fibronectin and hyaluronic acid production in skin fibroblasts. Clinical study shows significant improvement in skin firmness and wrinkle reduction.
Citation
Key Findings
Matrixyl increases collagen I synthesis by 117%, collagen III by 327% in fibroblasts
Stimulates fibronectin and hyaluronic acid production for improved skin hydration
Clinical study: 68% improvement in skin firmness after 12 weeks
Significant reduction in wrinkle depth and surface roughness vs. placebo
Mechanism: mimics collagen breakdown fragments, triggering repair response
Methodology
In vitro human fibroblast culture with collagen synthesis quantification. Double-blind clinical study with profilometry and cutometry measurements.
Limitations
In vitro collagen synthesis may not fully translate to in vivo skin remodeling. Topical bioavailability and depth of penetration vary by formulation.
Protocols Using This Research
Tags
Educational use only. Research summaries are provided for informational purposes. Always consult the original publication and a qualified healthcare provider before making clinical decisions.
Related Research
GHK-Cu and Skin Remodeling: Mechanisms of Action and Clinical Evidence
2015 · Strong Evidence
Copper Peptides and Hair Growth: GHK-Cu Stimulates Hair Follicle Enlargement
1999 · Moderate Evidence
The Human Tripeptide GHK-Cu in Prevention of Oxidative Stress and Degenerative C…
2012 · Strong Evidence
Topical Application of a Peptide Inhibitor of Hexapeptide Acetyl Hexapeptide-3 R…
2002 · Moderate Evidence
Build a protocol around this research
Our AI Advisor incorporates the latest research to build a personalized peptide protocol for your goals.
Start Assessment