Vialox (Pentapeptide-3V)

Vialox (Pentapeptide-3V, Gly-Pro-Arg-Pro-Ala-NH2) is a synthetic pentapeptide cosmetic active inspired by waglerin-1, a naturally occurring toxin from the venom of Trimeresurus wagleri (Wagler's pit viper) that antagonizes nicotinic acetylcholine receptors (nAChR) at the neuromuscular junction. Vialox mimics waglerin-1's mechanism but at cosmetically safe, topically applicable concentrations — modulating nAChR activity and reducing the efficiency of acetylcholine-mediated muscle end-plate depolarization. The result is reduced frequency and amplitude of muscle microcontraction at the dermal-muscular interface beneath expression-prone facial zones. Vialox also modulates voltage-gated calcium channel activity at the muscle membrane, reducing calcium influx that drives contraction. This dual calcium channel and nAChR modulation produces a graded, concentration-dependent reduction in dynamic muscle contraction — distinct from the SNARE-complex mechanisms of Argireline/SNAP-8 or the acetylcholinesterase inhibition of some other neuropeptide cosmetics. In vitro neuromuscular models demonstrate that Vialox reduces contraction amplitude by approximately 49% at 5 ppm concentration, with dose-dependent efficacy established across a range of physiologically relevant concentrations. Topical clinical studies show that 5–10% Vialox formulations significantly reduce the depth and volume of dynamic expression wrinkles (particularly forehead and periorbital lines) after 28 days of twice-daily application, with some studies reporting wrinkle reduction comparable to 5–10 unit botulinum toxin doses in the same regions. Research applications include neuromuscular junction pharmacology, nAChR ligand studies, and non-invasive cosmetic wrinkle reduction mechanisms. Vialox is suitable for combination with SNARE-targeting peptides to address neuromuscular junction communication through complementary mechanisms.