Pentapeptide-18 vs SNAP-8
Side-by-side comparison of key properties, dosing, and research.
Skin & CosmeticAnti-Aging & Longevity
Pentapeptide-18Skin & Cosmetic
SNAP-8- Summary
- Pentapeptide-18 (Leuphasyl) is a synthetic pentapeptide that mimics the sequence of enkephalin, an endogenous neuropeptide. It acts on neuronal pain receptors in facial muscles to reduce muscle contraction intensity and depth of expression lines, functioning similarly to Argireline (Acetyl Hexapeptide-3) but via a different receptor mechanism.
- SNAP-8 is a synthetic octapeptide cosmetic ingredient that reduces the depth of expression lines and wrinkles by competitively inhibiting the SNARE complex involved in acetylcholine release at neuromuscular junctions, providing a topical 'Botox-like' effect.
- Half-Life
- Not applicable (topical)
- N/A — topical application; local effect duration depends on formulation
- Admin Route
- Topical
- Topical
- Research
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- Typical Dose
- 0.005–0.05% in formulation
- 3–10% concentration in formulation
- Frequency
- Twice daily
- 1–2x daily
- Key Benefits
- Reduces depth of expression lines (forehead, crow's feet, glabellar)
- Inhibits acetylcholine release for muscle-relaxing effect
- Complementary mechanism to Argireline for enhanced anti-wrinkle activity
- Reversible and well-tolerated
- No risk of systemic paralysis at cosmetic concentrations
- Suitable for daily use in serums and creams
- Reduces depth of dynamic expression wrinkles
- Smooths forehead lines, crow's feet, glabellar lines
- Non-invasive topical Botox alternative
- Can be incorporated into serums, creams, eye contour products
- Reduces muscle contraction without paralysis
- Improves skin texture and firmness over time
- Complements other anti-aging peptides (Argireline, Matrixyl)
- Side Effects
- Generally very well-tolerated topically
- Rare skin sensitivity or mild irritation
- Theoretical opioid receptor desensitization with very prolonged high-dose use (not documented cosmetically)
- Generally excellent tolerability
- Rare: mild redness in sensitive individuals
- Not suitable for injection (topical use only)
- Stacks With
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