ARGIRELINE (ACETYL HEXAPEPTIDE-3)

This synthetic six-amino-acid peptide was designed to interfere with nerve signals that cause facial muscles to contract. Cosmetic companies have incorporated it into anti-aging creams and serums as a topical alternative to botulinum toxin injections. Research focuses primarily on its potential to reduce expression lines through a different delivery method than traditional neurotoxin treatments.

The peptide works by disrupting the cellular machinery that nerve cells use to communicate with muscles. It interferes with a protein complex called SNARE, which normally helps nerve cells release chemical signals that tell muscles to contract. When applied topically, this disruption theoretically reduces the intensity of facial muscle movements that create wrinkles over time.