SNAP-8 (Acetyl Octapeptide-3) — Lipotec Anti-Wrinkle Octapeptide

Composition Identity & Naming

SNAP-8 is a premium, patented anti-wrinkle octapeptide developed by Lipotec (a renowned active ingredient company based in Barcelona, Spain). We supply it as a high-purity bulk raw powder designed for cosmetic manufacturers and formulators.

• INCI Name: Acetyl Octapeptide-3
• Mechanism-derived Naming: The name "SNAP-8" originates from its specific mechanism targeting the SNARE protein complex (specifically mimicking the SNAP-25 protein, which stands for Soluble NSF Attachment Protein).
• Molecular Weight: Approximately 1075 Da (specifically 1075.2 Da).
• Peptide Sequence & Homology: SNAP-8 is a biomimetic octapeptide. It is a synthetic fragment modeled after the N-terminal end of the SNAP-25 protein (specifically amino acids 12–19). It shares homology with Argireline (Acetyl Hexapeptide-8, which represents amino acids 12–17 of SNAP-25) but features a longer sequence (8 amino acids vs. 6 amino acids) designed for enhanced binding and efficacy.

The SNARE Mechanism: "Topical Muscle Relaxation" Principle

The core scientific narrative of SNAP-8 centers around its ability to modulate the micro-contractions of facial muscles that lead to expression wrinkles:

1. SNARE Complex Assembly: The release of acetylcholine (ACh) at the neuromuscular junction requires the assembly of the SNARE protein complex, which is composed of three proteins: syntaxin, synaptobrevin, and SNAP-25.
2. Triggering Muscle Contraction: When vesicles containing acetylcholine fuse with the presynaptic membrane via the SNARE complex, ACh is released into the synaptic cleft. ACh binds to receptors on the muscle endplate, triggering muscle contraction. Repetitive facial muscle contractions over time result in dynamic expression wrinkles.
3. Competitive Inhibition by SNAP-8: SNAP-8 mimics the N-terminal sequence of SNAP-25 and competes with it for a position in the SNARE complex. If the SNARE complex is slightly destabilized or improperly assembled because it contains SNAP-8 instead of natural SNAP-25, vesicle fusion efficiency is significantly reduced.
4. Signal Attenuation: Consequently, the release of acetylcholine at the synaptic cleft is diminished. The neuromuscular signal is weakened, leading to decreased muscle contraction amplitude and muscle relaxation. As a result, the depth of expression wrinkles decreases over time.
5. Botox Comparison: While both Botox (Botulinum Toxin) and SNAP-8 target the SNARE complex, their methods differ. Botox is an injectable protease that irreversibly cleaves SNAP-25, carrying risks of paralysis, unnatural expressions, and injection site side effects. In contrast, SNAP-8 is a cosmetic-grade topical peptide that acts as a safe, reversible, competitive inhibitor—free of injection risks, local paralysis side effects, and ideal for daily skincare.

Specifications & Formulation Parameters

• Physical Form: White high-purity cosmetic raw powder.
• Recommended Topical Usage Concentration: 3% to 10% in final formulation (Lipotec officially recommends a maximum concentration of 10% of active solution, while typical maintenance formulas contain 5%).
• Solubility: Highly water-soluble, making it easy to incorporate into the aqueous phase of formulations.
• pH Stability Range: Excellent stability between pH 4.0 and 7.0.
• Reconstitution & Mixing: Dissolve the raw powder in purified or deionized water at room temperature or low temperature (<40°C) during the final cooling stage of emulsion preparation.
• Purity: ≥98.0% purity as determined by HPLC (High-Performance Liquid Chromatography).
• Commercial Reference: In commercial raw materials, Lipotec sometimes offers custom blends or synergistic combinations such as pairing SNAP-8 with Leuphasyl® (another peptide targeting a complementary pathway of muscle relaxation) to enhance efficacy.
• Wholesale Packaging: 1g, 10g, 50g, 100g, and custom bulk packaging options.

Safety & Application Declarations

• Toxicity & Tolerance: Excellent topical tolerance with no reported systemic toxicity or skin irritation under recommended concentrations.
• Cosmetic Grade Warning: IMPORTANT: SNAP-8 raw powder is strictly cosmetic grade, designed and sold exclusively for topical use and cosmetic formulation. It is NOT sold for injection purposes. Subcutaneous injection or other medical routes require pharmaceutical-grade manufacturing, sterile vial prep, and compliance with medical regulatory frameworks.
• Compatibility: Highly compatible with typical cosmetic actives. However, when formulated alongside strong acids or high percentages of Retinoids, care should be taken to ensure the pH remains within the stable range (4.0–7.0) to prevent peptide hydrolysis.