1. Product Overview
Water-Soluble Natural Vitamin E TPGS 25% (also known scientifically as Tocophersolan or D-alpha-tocopheryl polyethylene glycol 1000 succinate) is an innovative, amphiphilic derivative of natural vitamin E. By esterifying natural D-alpha-tocopheryl succinate with polyethylene glycol 1000, this compound bridges fat-soluble and water-soluble environments, achieving complete water dispersion.
Unlike conventional fat-soluble vitamin E, TPGS self-emulsifies in aqueous media to form stable micelles with a critical micelle concentration (CMC) of ~0.02%. For B2B formulators, contract manufacturers, and pharmaceutical developers, our bulk vitamin E TPGS 25% serves as a premier functional excipient and active nutrient delivery system—significantly boosting the oral bioavailability of poorly water-soluble compounds, active pharmaceutical ingredients (APIs), and lipophilic nutrients.
2. Product Specifications (Analytical Quality)
| Test Item | Specification Standard | Batch Result | Test Method |
|---|---|---|---|
| Identification (GC) | Corresponds to RS | Conforms | GC |
| Assay (D-alpha tocopherol) | ≥ 25.0% | 29.1% | GC |
| Optical Rotation [α]D25 | ≥ +24° | +27.6° | USP<781> |
| Acid Value | ≤ 0.27 mL | 0.14 mL | Titration |
| Solubility in Water | ≥ 20% (Clear solution) | Conforms | USP<TPGS> |
| Solvent Residue: Ethyl Acetate | ≤ 50 ppm | Not Detected | USP<467> |
| Solvent Residue: Ethanol | ≤ 200 ppm | 26 ppm | USP<467> |
3. Functional Applications
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Clear Functional Beverages & RTDs: Perfectly disperses into water-based sports drinks, juices, and fortified waters without altering clarity, taste, or color.
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Bioavailability & Absorption Enhancement: Acts as a potent P-glycoprotein inhibitor and micellar carrier, driving higher absorption rates for lipophilic nutrients and drugs.
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Advanced Nutraceutical Formulations: Ideal for liquid softgels, chewable tablets, and specialized drop formulations requiring high stability.
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Cosmeceuticals & Topical Serums: Incorporated into anti-aging skincare, serums, and water-based emulsions to deliver high-potency antioxidant protection directly to the skin.
4. Formulation Combinations
To maximize product performance and consumer compliance, Water-Soluble Natural Vitamin E TPGS 25% pairs seamlessly with:
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Coenzyme Q10 (CoQ10) & Astaxanthin: Overcomes absorption bottlenecks of fat-soluble antioxidants by creating clear, highly bioavailable water-dispersible blends.
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Curcumin & Cannabinoids (CBD/Hemp Extracts): Solubilizes hydrophobic botanical extracts into clear liquid or beverage matrices.
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Multivitamin Liquid Drops: Provides a stable, ethanol-free source of natural vitamin E suited for pediatric and geriatric formulations.
5. Market Opportunities
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Clear & Ready-to-Drink (RTD) Wellness: Meeting consumer preferences for convenient, transparent functional beverages enriched with vitamins.
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Next-Gen Delivery Systems: Strong shift toward self-emulsifying drug delivery systems (SEDDS) and enhanced nutrient absorption technologies.
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Clean-Label & Plant-Derived: Derived from natural vegetable oils, fulfilling market demand for clean-label, high-purity functional ingredients.
6. Quality & Supply
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Regulatory Compliance: Manufactured under strict cGMP protocols, meeting USP, NF, and Food Grade standards.
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Batch Consistency: Validated by rigorous HPLC testing; each commercial shipment includes a comprehensive Certificate of Analysis (CoA).
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Packaging & Storage: Packed in 1kg, 5kg, or 20kg food-grade plastic drums. Store in a cool, dry place below 25°C, protected from light and moisture.
7. FAQ (Frequently Asked Questions)
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Q1: How does Water-Soluble Vitamin E TPGS 25% differ from standard Vitamin E Acetate?
A1: Standard vitamin E forms are oil-soluble and require dietary fats for absorption. TPGS features a hydrophilic PEG chain that allows it to dissolve directly in water and form micelles, drastically improving absorption efficiency.
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Q2: Is TPGS stable under heat processing conditions?
A2: Yes, Vitamin E TPGS 25% exhibits exceptional thermal stability up to 200°C, making it highly resilient during standard commercial manufacturing and pasteurization processes.
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Q3: Can I request sample quantities for laboratory bench testing?
A3: Yes, we provide sample evaluation quantities for R&D trials. Contact our customer service team to coordinate sample shipment.
8. References
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Pharma Excipients / PMC Isochem Technical Monograph: Vitamin E TPGS
Comprehensive technical data, physical properties, and regulatory status of Tocophersolan.
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Antares Health Products: Properties and Applications of Vitamin E TPGS
In-depth documentation covering micelle formation, bioavailability enhancement, and beverage applications.
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PubMed (NCBI): D-Alpha-Tocopheryl Polyethylene Glycol Succinate as a Drug Absorption Enhancer
Peer-reviewed evaluations regarding P-glycoprotein inhibition and solubility mechanisms.
