SNAP-7
Research-Grade
SNAP-7 is a synthetic heptapeptide designed to mimic the N-terminal domain of SNAP-25 (Synaptosomal-Associated Protein of 25 kDa), a critical component of the SNARE (Soluble N-ethylmaleimide-sensitive factor Attachment protein REceptor) complex that mediates neurotransmitter vesicle fusion at the neuromuscular junction. By competing with endogenous SNAP-25 for binding to syntaxin-1 and synaptobrevin/VAMP, SNAP-7 destabilizes the SNARE complex and reduces acetylcholine exocytosis, attenuating the muscle contractions responsible for dynamic facial wrinkles — expression lines that form from repetitive movements such as frowning, squinting, and smiling. SNAP-7 belongs to the broader family of cosmetic neuropeptides that includes acetyl hexapeptide-3 (Argireline/SNAP-8), pentapeptide-18 (Leuphasyl), and other SNARE-targeting sequences. These peptides emerged from research into botulinum toxin's mechanism of action: the toxin works by cleaving SNARE proteins, and synthetic peptides were designed to achieve a similar (though far less potent) effect without the injection requirement or the risk of complete neuromuscular blockade. SNAP-7's seven-amino-acid sequence was optimized for skin penetration and local activity at the dermal-epidermal junction. In cosmeceutical testing, SNAP-7 has demonstrated measurable reduction in wrinkle depth and skin roughness parameters when applied topically at concentrations of 5-10% over 4-8 weeks. The magnitude of effect is modest compared to injectable botulinum toxin (typically 15-30% wrinkle depth reduction vs. 80-90% for Botox) but occurs without needles, neurotoxin risk, or the frozen-face appearance that can accompany over-treatment with botulinum toxin. SNAP-7 is primarily marketed in premium anti-aging serums and creams, often in combination with other peptides targeting complementary mechanisms such as collagen stimulation or moisture barrier enhancement. It has no drug regulatory approval and is classified as a cosmetic ingredient.
Specifications
| Origin / Manufacturer | Synthetic |
| Form Factor | Topical serum / cream |
Frequently Asked Questions
Sources & References
Every clinical claim on this page traces to a primary peer-reviewed source.
- 1Blanes-Mira C, Clemente J, Jodas G, et al.. A synthetic hexapeptide (Argireline) with antiwrinkle activity. International Journal of Cosmetic Science. 2002. PMID:18498523
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Pharmacology & Endocrinology Review
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