SNAP-8 (Acetyl Octapeptide-3) — SNARE-Modulating Cosmetic Research Peptide
SNAP-8 is a synthetic acetylated octapeptide that mimics the N-terminal end of SNAP-25, a component of the SNARE complex responsible for vesicle docking and neurotransmitter release at presynaptic terminals. Developed as a topically active research peptide modeled on SNARE-complex disruption mechanics first characterized with botulinum toxin, SNAP-8 has been investigated for its capacity to attenuate acetylcholine-mediated muscle contraction at neuromuscular junctions in cell-culture and ex-vivo models.
Mechanism of Action
Preclinical research shows SNAP-8 competes with native SNAP-25 for incorporation into the SNARE complex, destabilizing assembly of the syntaxin-SNAP-25-VAMP ternary structure required for vesicle fusion. By interfering with vesicle docking at the presynaptic membrane, SNAP-8 modulates acetylcholine release in dose-dependent fashion. Comparative studies have characterized its activity profile relative to argireline (acetyl hexapeptide-3), with SNAP-8 typically showing extended peptide length and altered binding kinetics.
Research Applications
- SNARE-complex assembly and disruption studies
- Acetylcholine release modulation in neuromuscular preparations
- Topical cosmetic peptide formulation research
- Comparative SNAP-25-mimetic peptide studies
- Skin barrier permeability investigations
Product Specifications
- Quantity: 10mg per vial
- Purity: ≥98% (HPLC verified)
- Molecular Formula: C₃₇H₆₆N₁₄O₁₃S
- Molecular Weight: 894.0 g/mol
- Sequence: Ac-Glu-Glu-Met-Gln-Arg-Arg-Ala-Asp
- Form: Lyophilized powder
- Storage: Refrigerate after reconstitution
- Testing: Third-party lab tested, COA available on request
For research purposes only. Not for human or veterinary use.





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