As a specialized manufacturer of plant-based antioxidants, we supply global nutraceutical brands, contract encapsulation plants, and functional food formulators with standardized Natural D-Alpha Tocopherol Oil (750 IU, 900 IU, 1000 IU, 1300 IU/g) and Microencapsulated Powder (350 IU, 500 IU, 700 IU/g), available in Non-GMO Soy and Allergen-Free Sunflower botanical sources.

Product Form	Botanical Source Options	Standard Potency Specifications (IU/g)	Optimal Industrial Application
NATURAL D-ALPHA TOCOPHEROL OIL SERIES (LIQUID)
Liquid Oil	Soybean-Derived / Sunflower-Derived (Soy-Free)	• 750 IU/g Oil • 900 IU/g Oil • 1000 IU/g Oil • 1300 IU/g Oil (High Concentration)	Softgel capsule filling, oral liquid drops, cosmetic serum oil phase, and lipid-based formulations.
MICROENCAPSULATED D-ALPHA TOCOPHEROL POWDER SERIES (DRY)
Dispersible Powder	Soybean-Derived / Sunflower-Derived (Soy-Free)	• 350 IU/g Powder (CWD/Direct Compress) • 500 IU/g Powder (CWD/Direct Compress) • 700 IU/g Powder (High Potency CWD)	Hard gelatin/HPMC capsule filling, compression tablets, multivitamin dry premixes, beverage powders, and sachets.

Quality Parameter	Factory Specification Limits	Analytical Method & Compliance
Active Potency Assay (IU/g)	Within 100.0%–110.0% of Labeled Target IU	HPLC Assay (USP/EP Monograph). Guaranteed zero synthetic isomer blend.
Specific Optical Rotation [α]D20	+24° or higher	Polarimetry. Verifies pure natural D-stereoisomer (2R, 4'R, 8'R).
Benzo(a)pyrene & PAH4	Benzo(a)pyrene ≤ 2.0 ppb | PAH4 ≤ 10.0 ppb	GC-MS/MS. Complies strictly with EU Regulation (EU 2015/1933) for botanical oils.
Heavy Metal Contaminants	Pb ≤ 0.5 ppm | As ≤ 0.5 ppm | Cd ≤ 0.1 ppm | Hg ≤ 0.1 ppm	ICP-MS. Fully compliant with California Proposition 65 and European Pharmacopeia limits.

Our state-of-the-art processing facility is equipped with automated high-vacuum molecular distillation units and continuous spray-drying microencapsulation towers designed specifically for thermal-sensitive bio-nutrients.

We partner with global contract manufacturers and brand owners to de-risk procurement, optimize formulation costs, and ensure unbroken supply chain continuity.

• Custom Potency Standardization: Tailor-made IU/g adjustments (e.g., exact 1000 IU/g or 500 IU/g blends) to eliminate excess premix costs.
• Dedicated Account Engineers: Direct technical alignment between our R&D team and your formulation chemists for rapid encapsulation testing.
• Buffer Stock & Annual Contract Hold: Reserved warehouse inventory for contracted B2B partners to lock in raw material prices and guarantee 72-hour dispatch.

Product Form	Primary Inner Packaging	Export Outer Packaging	Nitrogen Protection
Liquid Oil Grades	Food-grade aluminum bottles / Steel drums	20kg Drum / 190kg Steel Drum / 950kg IBC Tote	Nitrogen-purged headspace
Powder Grades	Double-layer vacuum aluminum foil bag	20kg / 25kg Cardboard Fiber Drum	Vacuum sealed with desiccant

Q1: How should I choose between D-Alpha Tocopherol Oil (750–1300 IU/g) and Powder (350–700 IU/g)?

If your product form is softgel capsules, liquid drops, or cosmetic oils, choose our D-Alpha Oil grades (750, 900, 1000, or 1300 IU/g) for high concentration and crystal clarity. If you manufacture hard capsules, compression tablets, or functional dry powder drinks, choose our Microencapsulated Powder grades (350, 500, or 700 IU/g) to ensure flowability, zero oil leakage, and cold water dispersibility.

Q2: What is the primary advantage of Sunflower-derived Vitamin E over Soybean-derived Vitamin E?

Soybean-derived D-Alpha Tocopherol offers the best cost efficiency for mainstream dietary supplements. Sunflower-derived D-Alpha Tocopherol is completely soy-free, making it the premier choice for brand owners requiring allergen-free labeling, non-soy compliance in North America, and strict regulatory clearance in the EU.

Q3: What packaging options do you provide for bulk oil and powder export?

For Liquid Oils, we supply 20kg steel drums, 190kg steel drums, or 950kg IBC totes purged with nitrogen gas. For Powders, we supply 20kg or 25kg cardboard fiber drums with double-layer vacuum-sealed aluminum inner bags.

Q4: How do you guarantee zero adulteration with synthetic DL-Alpha Tocopherol?

Every production batch undergoes specific optical rotation testing ([α]D20 ≥ +24°) using polarimetry, alongside chiral HPLC chromatography. This analytically proves the presence of pure 100% natural D-stereoisomers without any synthetic DL-isomer blending.

Q5: What is the shelf life and recommended storage conditions for bulk Vitamin E raw materials?

Our D-Alpha Tocopherol Oils and Powders have a guaranteed 24-month shelf life from the date of manufacture when stored in unopened original packaging at controlled room temperatures (≤25°C), away from direct sunlight, heat, and moisture.

Q6: Do you support custom potency adjustments or carrier matrix requests for powder grades?

Yes, as a direct OEM manufacturer, we offer customized microencapsulation. We can adjust potency levels (e.g., 350, 500, or 700 IU/g) and utilize custom non-allergenic carrier matrices (such as acacia gum, modified starch, or vegan carriers) based on your formulation needs.