Palmitoyl Tetrapeptide-7

Palmitoyl Tetrapeptide-7, a synthetic peptide used prominently in cosmetic formulations, is designed to enhance skin appearance by reducing inflammation and promoting skin elasticity. It functions by modulating the production of interleukins, which are signaling molecules that play a role in the skin's inflammatory response. By doing so, it helps to diminish the appearance of fine lines and wrinkles. Scientists initially studied Palmitoyl Tetrapeptide-7 for its potential in enhancing skin repair and reducing skin damage caused by environmental factors. Researchers are also looking at its role in improving skin barrier function and hydration. Today, it is primarily studied for its effects on:

• Skin elasticity enhancement
• Reduction of fine lines
• Inflammation control
• Skin repair
• Improving skin barrier function

PeptideSource editorial · Updated Jul 18, 2026