Leuphasyl vs SNAP-25 Fragment
A side-by-side research comparison of Leuphasyl and SNAP-25 Fragment across mechanism, dosing, half-life, benefits, side effects and research status.
Comparison table
| Attribute | Leuphasyl | SNAP-25 Fragment |
|---|---|---|
| Full name | Leuphasyl (Pentapeptide-18) | SNAP-25 Inhibitory Fragment Peptide |
| Category | Skin & Anti-Aging | Skin & Anti-Aging |
| Status | Research compound | Research compound |
| Mechanism | Binds enkephalin receptors on neuronal membranes, reducing calcium influx and neurotransmitter release at the presynaptic level. Works upstream of argireline. | Directly competes with the SNAP-25 binding domain in SNARE complex formation, providing highly specific inhibition of vesicle fusion at facial neuromuscular junctions. |
| Molecular weight | 599.7 Da | ~650 Da |
| Half-life | 6-10 hours (topical) | N/A (topical depot) |
| Bioavailability | Moderate (topical) | Topical penetration ~6-9% |
| Typical dose | 3-5% solution | 3-8% in formulation |
| Frequency | 2x daily | 2x daily |
| Route | Topical | Topical serum |
Leuphasyl reported benefits
- Complements argireline action
- Reduces muscle tension
- Smooths expression lines
- Gentle mechanism
SNAP-25 Fragment reported benefits
- Highly specific SNARE targeting
- Expression line reduction
- Improved selectivity
- Complementary to Argireline
Related comparisons
Research and educational reference only. Not medical advice.