Palmitoyl Tetrapeptide-7 vs SNAP-25 Fragment
A side-by-side research comparison of Palmitoyl Tetrapeptide-7 and SNAP-25 Fragment across mechanism, dosing, half-life, benefits, side effects and research status.
Comparison table
| Attribute | Palmitoyl Tetrapeptide-7 | SNAP-25 Fragment |
|---|---|---|
| Full name | Palmitoyl Tetrapeptide-7 (Pal-GQPR) | SNAP-25 Inhibitory Fragment Peptide |
| Category | Skin & Anti-Aging | Skin & Anti-Aging |
| Status | Research compound | Research compound |
| Mechanism | Inhibits IL-6 release from keratinocytes and reduces inflammation-mediated MMP activation, preserving existing collagen while complementing Pal-GHK collagen building. | 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 | 693 Da | ~650 Da |
| Half-life | 8-12 hours (topical) | N/A (topical depot) |
| Bioavailability | Good (topical) | Topical penetration ~6-9% |
| Typical dose | 2-4% in formulation | 3-8% in formulation |
| Frequency | 1-2x daily | 2x daily |
| Route | Topical | Topical serum |
Palmitoyl Tetrapeptide-7 reported benefits
- Anti-inflammatory (skin)
- Reduces IL-6
- Prevents collagen degradation
- Combats inflammaging
SNAP-25 Fragment reported benefits
- Highly specific SNARE targeting
- Expression line reduction
- Improved selectivity
- Complementary to Argireline
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Research and educational reference only. Not medical advice.