An octapeptide that mimics the N-terminal domain of SNAP-25 (synaptosomal-associated protein 25 kDa), competing for positions in the SNARE complex assembly required for neurotransmitter vesicle fusion at the neuromuscular junction. By destabilizing the SNARE complex, SNAP-8 reduces acetylcholine exocytosis and attenuates muscle contraction amplitude — functioning as a topical neuromuscular modulator. Often described as "topical Botox" though the mechanism (SNARE competition) differs from botulinum toxin (SNAP-25 cleavage).
StabilityPer formulation; typically 12+ months in finished product
Key distinction: Topical neuromuscular modulator — competitive SNARE complex inhibition reduces muscle contraction amplitude without the irreversible SNAP-25 cleavage of botulinum toxin.
Scientific Evidence
Published Research
[1]
Blanes-Mira C et al. A synthetic hexapeptide (Argireline) with antiwrinkle activity. Int J Cosmet Sci 2002;24:303-310 — PubMed 18498523
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