Pentapeptide-3, a pentapeptide fragment derived from waglerin-1 neurotoxin, is sourced from Temple Viper venom. This compound serves as a competitive antagonist of nicotinic acetylcholine receptors (nAChRs), blocking nerve signals at the post-synaptic membrane. Notably, Pentapeptide-3 exhibits anti-aging properties and is commonly incorporated with other cosmetic peptides for enhanced effects [1] [2].