This data is for laboratory research purposes only. Not for human or animal consumption.
What is Matrixyl?
Matrixyl (Palmitoyl Pentapeptide-4, KTTKS-palmitoyl) is a topical cosmetic peptide engineered to stimulate dermal collagen production through matrikine signaling.
Mechanism of Action
The KTTKS pentapeptide sequence is a fragment of type I procollagen that fibroblasts recognize as a signal of extracellular matrix damage, triggering upregulation of collagen I, collagen III, and fibronectin synthesis. The palmitoyl chain enhances penetration through the stratum corneum.
Observed Laboratory Results
- Collagen I and III synthesis upregulation in cultured fibroblasts
- Wrinkle depth reduction measured by skin profilometry in human studies
- Skin density improvement by ultrasound at 12 weeks
- Safety profile comparable to placebo in clinical cosmetic trials