The Topical Neurotransmitter Inhibitor for Wrinkle Reduction
Pentapeptide-3, commercially known as Vialox, is a revolutionary synthetic peptide (CAS 135679-88-8) designed to mimic the mechanism of action of certain neurotoxins to reduce the appearance of expression lines and wrinkles. As a high-purity cosmetic active ingredient (≥95%), it offers a non-invasive, topical alternative for smoothing skin by targeting the underlying muscular contractions that lead to wrinkles. This makes it a premier choice for formulators developing next-generation anti-aging serums, creams, and targeted treatments.
Core Product Specifications
| Attribute | Specification |
|---|---|
| INCI Name | Pentapeptide-3 |
| Trade Name | Vialox |
| Appearance | White to off-white lyophilized powder |
| Molecular Formula | C₂₁H₃₇N₉O₅ |
| Molecular Weight | 495.58 g/mol |
| Purity (HPLC) | ≥ 95.0% |
| Solubility | Soluble in water |
| Recommended Usage | 3% - 10% (of a 0.5 g/L stock solution) in final product |
| Storage | Store in a cool, dry place (-20°C recommended for long-term stability). |
| Shelf Life | 24 months when stored properly |

Scientific Mechanism: How Pentapeptide-3 (Vialox) Works
Pentapeptide-3 operates through a sophisticated biomimetic mechanism, often described as a topical alternative to injectable neurotoxins. Its pentapeptide sequence is engineered to specifically target the neuromuscular junction.
Key Action Pathway:
- Targeted Binding: Pentapeptide-3 selectively binds to acetylcholine receptors on the postsynaptic membrane of dermal muscle cells.
- Signal Inhibition: This binding competitively inhibits the action of acetylcholine, the primary neurotransmitter that signals muscles to contract.
- Muscle Relaxation: By blocking the signal, the peptide reduces the frequency and intensity of micro-contractions in facial muscles.
- Wrinkle Reduction: With relaxed muscles, existing dynamic wrinkles (such as crow's feet and forehead lines) soften, and the formation of new lines is prevented.
Critical Distinction: While its mechanism is analogous to certain neurotoxins, Pentapeptide-3 is a synthetic peptide and functions topically and reversibly. It does not permanently affect nerves or muscle function, offering a safer profile for cosmetic use.
Clinically Supported Benefits & Efficacy
Incorporating Vialox peptide into cosmetic formulations delivers targeted, visible results, as supported by clinical data:
- Reduces Depth of Expression Lines: Primary application is for smoothing crow's feet, forehead lines, and frown lines. Clinical studies have demonstrated a reduction in wrinkle depth by up to 49% after consistent use.
- Prevents Formation of New Wrinkles: By calming muscular activity, it helps prevent dynamic movements from etching permanent lines into the skin.
- Non-Invasive Anti-Aging Solution: Provides a needle-free option for consumers seeking significant wrinkle-smoothing effects without injections.
- Improves Skin Smoothness & Texture: Leads to an overall smoother, more relaxed skin appearance.
Formulation Applications & Usage Guidelines
This highly effective peptide is ideal for a range of targeted anti-aging products, especially pentapeptide 3 serum formulations.
Target Product Applications:
- Targeted Anti-Wrinkle Serums: High-potency treatments for the eye contour, forehead, and glabellar (frown line) areas.
- Intensive Corrective Creams: Rich emulsions for overnight repair and smoothing.
- Eye Contour Gels & Creams: Lightweight textures specifically designed for the delicate periocular area.
- Professional-Grade Treatments: High-concentration ampoules or masks for clinical or at-home use.
Formulation & Handling Protocol:
- Preparation of Stock Solution: For ease of use and accuracy, first prepare a 0.05% (0.5 g/L) aqueous stock solution of Pentapeptide-3 powder.
- Incorporation: Add the stock solution in the final cool-down phase of your process (< 40°C). The recommended dosage is 3% to 10% of this stock solution in the final product, equating to a final concentration of 1.5 ppm to 5 ppm of the pure peptide.
- pH & Compatibility: Stable in the typical pH range of skincare products. It exhibits excellent synergy with other anti-aging actives like Matrixyl peptides, moisturizing agents, and skin-restoring ingredients for a comprehensive approach.
- Consumer Use: Advise users to apply product to cleansed skin on target areas (e.g., around eyes, forehead) once or twice daily.

Pentapeptide-3 vs. Other Anti-Wrinkle Peptides
| Peptide | Primary Target | Key Mechanism | Ideal For |
|---|---|---|---|
| Pentapeptide-3 (Vialox) | Muscle Contraction | Mimics neuro-inhibitory action, relaxes muscles. | Dynamic wrinkles (crow's feet, expression lines). |
| Acetyl Hexapeptide-8 (Argireline) | Neurotransmitter Release | Inhibits SNARE complex, reduces signal release. | Broad-spectrum wrinkle smoothing, especially forehead. |
| Palmitoyl Pentapeptide-4 (Matrixyl) | Dermal Matrix | Stimulates collagen, elastin, fibronectin synthesis. | Skin firming, improving elasticity, static wrinkles. |
| Palmitoyl Tripeptide-38 | Dermal-Epidermal Junction | Stimulates key structural components at the DEJ. | Skin density, firming, and overall structural support. |
Formulator Insight: For a comprehensive anti-aging product, combine Pentapeptide-3 (to relax muscles) with a matrix-building peptide like Matrixyl (to repair structure). This dual approach targets both the cause (contractions) and the result (loss of support) of wrinkles.
Frequently Asked Questions (FAQ)
Q: Is Vialox the same as Botox?
A: No. Botox is a prescription injectable neurotoxic protein that temporarily paralyzes muscles. Vialox (Pentapeptide-3) is a topically applied synthetic peptide that works via a similar mechanism but is milder, reversible, and classified as a cosmetic ingredient, not a drug.
Q: How long does it take to see results with a pentapeptide-3 serum?
A: Initial effects on muscle relaxation may be felt, but visible smoothing of wrinkles typically requires consistent use for 4 to 8 weeks. Optimal results are usually seen after 2-3 months of twice-daily application.
Q: Are there any side effects?
A: Pentapeptide-3 is generally well-tolerated. As with any active ingredient, a small percentage of users with very sensitive skin may experience mild, temporary redness or irritation. A patch test is always recommended.
Q: Can it be used during pregnancy or breastfeeding?
A: While topical application presents minimal systemic risk, there are no specific clinical studies on use during pregnancy or lactation. As a precaution, many brands recommend consulting a healthcare provider, and some may choose to avoid it in products marketed for this demographic.
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Elevate your anti-aging line with this clinically-proven, topical neuro-inhibitory peptide.
Contact us today to request a 10-20g sample of our high-purity Pentapeptide-3 (Vialox) Powder, obtain a detailed technical data sheet, or consult with our experts on integrating it into your next groundbreaking formulation.
Please contact us at ella.zhang@huilinbio-tech.com.
Why choose us?
- We abide by all relevant industry standards and regulations to ensure the safety and quality of our products.
- We insist on innovation and learning to promote the transformation and upgrading of enterprises.
- We are a factory in China, providing high-quality Pentapeptide-3 products and professional services. Companies adhering to the "integrity, dedication, innovation, and development" concept unite all staff as one.
- We attach importance to customer feedback and use it to continuously improve our products and services.
- Our factory is committed to providing quality products. We adopt strict quality control standards to ensure the purity of raw materials and the safety of products. We adopt advanced production technology and equipment to ensure the stability and consistency of products.
- Our products have been strictly tested and verified, and meet the international food hygiene standards.
- We have an experienced research team dedicated to the research and development of Pentapeptide -3. They cooperate with many scientific research institutions and universities to innovate and improve constantly to keep their products competitive in the market. We pay attention to the latest scientific research progress and technical trends to ensure the quality and effectiveness of products.
- We provide customized services and adjust the packaging, specifications, and formula according to the needs of customers. We can provide personalized solutions and work closely with customers to ensure that our products meet their expectations and requirements.
- We have a good reputation and reputation. We are guided by customer satisfaction, adhering to the principle of honest management and service concept. Our team always treats customers with a professional, efficient and friendly attitude and answers their questions and needs on time.
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