Vitamin D3 Powder Bulk
2、Specification:100,000IU/g,500,000IU/g,40000000IU/g
3、Appearance: White Powder
4、CAS NO.:67-97-0;8024-19-9;8050-67-7
5、Lead time: 3-7 Working Days
6、Package: 25kg/drum, 27 drums/tray
7、Main Market: Europe, America, Vietnam, Indonesia, Southeast Asia, Thailand, Russia, etc.
8、Certification: cGMP,Kosher, Halal, BRC, Organic, ISO9001, ISO22000, etc
- Product Description
Bulk Vitamin D3 Powder (Cholecalciferol) Nutraceutical‑Grade Raw Material | Hongda Phytochemistry
Our microencapsulated Vitamin D3 powder bulk is one of our high‑volume steady‑stock vitamin raw materials, widely purchased by supplement manufacturers, premix producers and functional‑food factories globally.
Vitamin D3 bulk powder is a microencapsulated, cold-water dispersed cholecalciferol with a standardized content ≥100,000 IU/g. Shaanxi Hongda's vitamin D3 pure powder utilizes a core "spray-drying microencapsulation" technology, encapsulating high-purity cholecalciferol in a patented water-soluble matrix, forming microcapsules with an extremely narrow particle size distribution. This allows for temperature tolerance above 85°C, and bioavailability is 35% higher than conventional formulations. Our powder exhibits excellent stability, low odor, and promotes bone resorption, supplementing the body's calcium needs.
We strictly separate food‑grade and feed‑grade production lines to avoid cross‑grade mixing risk.
Buy bulk microencapsulated Vitamin D3 cholecalciferol powder for supplements & functional food. Stable potency, full batch documentation, regular large‑volume stock.
Request samples and spec sheet:duke@hongdaherb.com
Vitamin D3 Supplier:
Shaanxi Hongda Pure Vitamin D3 Powder fully complies with the United States Pharmacopeia (USP), European Pharmacopoeia (EP), Food Chemical Metrology Standards (FCC), and British National Standard GB14880, making it an ideal choice for fortifying foods, beverages, dietary supplements, and premixes:
1. Excellent Dilution Uniformity: Our Vitamin D3 Powder Bulk utilizes graded particle size control technology to ensure that the IU content error per 1g of powder is controlled within 2%.
2. Comprehensive Carrier Solutions: For clean label applications, we offer not only traditional gelatin-based solutions but also modified starch-based solutions. Dairy-free, soy-free, and non-GMO, it fully meets the high-end requirements of vegetarian supplements.
3. Dual-Layer Antioxidant Barrier: We pre-add natural Vitamin E as an internal antioxidant to the microcapsule core, combined with a dense outer wall material.
4. Clear grade separation: food‑grade only, no feed‑grade substitution risk: Some suppliers mix or substitute feed‑grade D3 to cut cost. We keep independent production and testing for nutraceutical‑grade goods. Every shipment’s COA reflects food‑grade specification parameters.

Product Specification
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ANALYSIS
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SPECIFICATION
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RESULTS
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Appearance
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White Powder
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Complies
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Odor
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Characteristic
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Complies
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Tasted
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Characteristic
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Complies
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Assay
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99%
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Complies
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Sieve Analysis
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100% pass 80 mesh
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Complies
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Loss on Drying
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5% Max.
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1.02%
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Sulphated Ash
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5% Max.
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1.3%
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Extract Solvent
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Ethanol & Water
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Complies
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Heavy Metal
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5ppm Max
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Complies
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As
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2ppm Max
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Complies
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Residual Solvents
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0.05% Max.
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Negative
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Microbiology
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|
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Total Plate Count
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1000/g Max
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Complies
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Yeast & Mold
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100/g Max
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Complies
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E.Coli
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Negative
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Complies
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Salmonella
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Negative
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Complies
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Have more technical or sourcing questions?
Submit an inquiry:duke@hongdaherb.com.
Core Manufacturing Process
Many quality issues in market‑supplied Vitamin D3 powder come from insufficient encapsulation, heat exposure during drying and lack of anti‑oxidation protection. Our workflow focuses on protecting cholecalciferol potency through every step:
- Incoming raw material verification Check identity and purity of cholecalciferol oil source. Strictly screen out feed‑grade source materials.
- Emulsification & micro‑encapsulation Mix D3 oil with food‑grade carrier and controlled antioxidant under low‑light environment, form uniform tiny oil droplet emulsion.
- Gentle spray‑drying Controlled‑temperature spray‑drying forms protective beadlet shell around active oil core; avoid over‑heating which would degrade Vitamin D3 potency.
- Sieving & homogenized blending Adjust particle‑size distribution to get free‑flow powder; mix full batch to reduce intra‑batch potency deviation.
- Full‑item batch testing Each batch tests potency, appearance, loss on drying, heavy metals and microbiological indicators before release.
- Protective sealed packing Seal drums rapidly after testing. Nitrogen‑flushed packing is optional for long‑distance high‑temperature sea shipment.
Vitamin D3 Benefits
1. Vitamin D3 Powder Bulk can improve the body's absorption of calcium and phosphorus, bringing plasma calcium and phosphorus levels to saturation.
2. Pure vitamin D3 powder can promote bone growth and calcification, maintaining healthy teeth.
3. Cholecalciferol Powder can also increase phosphorus absorption through the intestinal wall and phosphorus reabsorption through the renal tubules, maintaining intestinal health.
4. Hongda's vitamin D3 supplements can maintain normal blood citrate levels.
5. Food‑grade cholecalciferol powder can prevent amino acid loss through the kidneys, thereby protecting kidney health.
Applications: Where Science Meets Efficacy
Our powder is trusted in:
1. Prescription Medications: Osteoporosis treatments, calcium regulators.
2. OTC Supplements: High-potency softgels, chewable tablets.
3. Pediatric/Geriatric Formulations: Easy-to-absorb, low-irritant solutions.
4. Veterinary Pharmaceuticals: Pet and livestock health products.
Pharmaceutical Excellence You Can Trust
Uncompromising Purity Standards
We use a production technique that checks the purity levels of each batch using HPLC and makes sure that they match the standards specified by the USP, EP, and JP pharmacopeias. We recognize that pharmaceuticals need to have a consistent potency to work, which is why our quality control requirements are greater than what the company requires.
Our white to off-white crystalline powder maintains stable and is bioavailable at the maximum level when you add it to your final recipes. It may be delivered in several ways, from regular tablets to newer softgel technologies, because it dissolves in fat.

Complete Regulatory Compliance
It's easy to get around international regulatory settings with our comprehensive documentation help. We make sure that our locations follow the most up-to-date cGMP, ISO 9001, and ISO 22000 standards. This offers your applications the regulatory backing they require. We follow the guidelines set by the EMA and FDA, and you may ask for Drug Master Files (DMF) and Certificates of Suitability to European Pharmacopoeia (CEP).
Our legal experience will make sure that your vitamin D3 goods fit all of the requirements in North America, Europe, or the Asia-Pacific area straight immediately.

Advanced Manufacturing Capabilities
We can change our manufacturing to meet the demands of any firm, big or little, from a tiny pharma company just starting out to a Fortune 500 company. Our state-of-the-art facilities can handle orders for clinical trials that weigh 50 kg or less, as well as contracts for commercial manufacturing that weigh several tons each year.
We have more than 15 years of expertise in vitamin D3 research and development. We can adjust the particle size distributions, provide microencapsulation for greater stability, and make carrier mixes for water-dispersible forms while keeping the quality at a pharmaceutical level.

Packaging & Shipping Information
- Standard packing: 25 kg net weight per food‑grade fibre drum, double inner PE moisture‑proof bags. Nitrogen‑flushed packing optional.
- Storage guidance: Store sealed in cool, dry and dark warehouse. Avoid heat, sunlight and repeated drum opening. Once opened, finish consumption quickly.
- Shipping options: Sea freight, air freight. For hot‑humidity tropical destinations we recommend enhanced protective packing.
- Lead‑time: Normally 7‑12 working‑days after deposit. Custom carrier or special IU specs will extend lead‑time accordingly.

Hongda's OEM Service
Customize our Vitamin D3 Powder to fit your needs:
- Particle Size: 80–100 mesh standard (adjustable).
- Stability Solutions: Microencapsulated or lyophilized formats.
- Blend Options: Pre-mixed with Vitamin K2 or calcium carriers.
Our R&D team provides free formulation support, including shelf-life testing and compatibility studies.

Why 90% of Top Pharma Brands Choose Us
✅ Zero Compliance Incidents: 25+ years of flawless regulatory history.
✅ Batch-to-Batch Consistency: Rigorous QC protocols with 100% traceability.
✅ Cost-Efficient: Vertical integration cuts costs without compromising quality.
✅ Eco-Conscious: Recyclable packaging and energy-efficient production.
FAQ: What Pharmaceutical Buyers Ask
Is your Vitamin D3 powder food‑grade or feed‑grade?
A: This listing is for nutraceutical / food‑grade microencapsulated powder. Our factory separates production workflow for food‑grade and feed‑grade goods. Please clearly state grade requirement in your inquiry.
Q2: What causes Vitamin D3 potency loss? How do you control this risk?
A: Heat, light, oxygen and high‑humidity environment will degrade cholecalciferol. Our micro‑encapsulated beadlet shell reduces exposure risk; we adopt low‑light production and sealed packing. Even so, customers should still follow proper warehouse storage rules after goods arrival.
Q3: What potency options can you supply?
A: Standard grade is 100 000 IU/g. Other IU strengths can be discussed, custom specs will affect MOQ and production lead‑time. Exact potency value is printed on each lot’s COA.
Q4: Can this powder be used for capsule filling and tableting?
A: Our beadlet powder shows good flow property for most high‑speed filling and tableting lines. We strongly suggest customers run small‑scale formulation trial before mass production, as final performance is also affected by your own excipients and workshop environment.
Q: How do you verify the purity of Vitamin D3 Powder?
A: Every batch undergoes HPLC and UV-Vis testing, with results included in the CoA.
Q: Can you supply material pre-certified for EU markets?
A: Yes! Our EU batches come with CEP documentation and EMA compliance guarantees.
Q: What’s the lead time for 500kg orders?
A: Standard orders ship in 10–14 days; expedited options available.
Q: Do you support stability studies for new formulations?
A: Absolutely. Our lab provides ICH-guided testing for shelf-life validation.
Contact Us
You may approach our pharmaceutical specialists at duke@hongdaherb.com for all the regulatory paperwork, detailed technical specifications, and help with making unique formulations. Let's chat about how our pharmaceutical-grade Vitamin D3 Powder Bulk may help you make products and stay on the right side of the law.
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