Vitamin D
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Vitamin D Bulk Supplier

Vitamin D factory supplier

  1. English Name: Vitamin D (often called the “sunshine vitamin”—the two main forms are Vitamin D2 (ergocalciferol, from plants) and Vitamin D3 (cholecalciferol, from animal sources/human skin when exposed to sun); D3 is more commonly used for supplements!)
  1. Specification
    • Purity: ≥ 99% (HPLC tested—pharmaceutical/food grade for both D2 and D3; supplement doses typically range from 400 IU to 5,000 IU per serving)
    • Solubility: Fat-soluble (mixes with oils like MCT or olive oil—not water-soluble; needs fat to be absorbed by the body)
    • Moisture: ≤ 0.5% (keeps it stable—moisture breaks down Vitamin D fast, so dry storage is key)
    • Heavy Metals: ≤ 5 ppm (super safe for oral use—meets global vitamin and supplement standards)
    • Form: Usually a yellowish oil (bulk raw material) or encapsulated powder (for supplements); some are mixed with carriers like maltodextrin for easier blending
  1. Appearance: For raw oil form—pale yellow to golden liquid with a mild, neutral aroma; for encapsulated powder—off-white to light yellow powder (no scent). Definitely not a yellowish-white solid with chocolate aroma! It’s either an oil or a subtle powder, no chocolate notes at all.
  1. CAS NO.: Depends on the form—Vitamin D2 (ergocalciferol) is 50-14-6; Vitamin D3 (cholecalciferol) is 67-97-0 (no single CAS for “Vitamin D” since it has two main types!)
  1. Lead time: 3–7 Working Days (we stock both D2 and D3 in bulk oil and powdered forms—fast for supplement brands, food manufacturers, and pharmacies)
  1. Package:
    • Small sizes: 10mL/100mL amber glass bottles (oil form—light-proof to protect potency) or 30-count/60-count capsules (powdered D3, with child-resistant caps)
    • Bulk: 25kg food-grade drums (oil form, lined with inert plastic—27 drums per tray; shipped with temperature control to keep it stable) or 20kg vacuum-sealed bags (powdered form, with desiccants)
  1. Main Market: Global—North America (supplements for winter months when sun exposure is low), Europe (fortified foods like milk/yogurt), Asia (growing demand for immune and bone health supplements). Popular with people who live in cold climates, seniors, and those with limited sun access.
  1. Applications & Main Benefits
    • Dietary Supplements
      • Daily Multivitamins: Added as D3 (400–1,000 IU per serving—covers basic daily needs)
      • High-Dose Capsules: 5,000 IU D3 for people with deficiencies (doctors often recommend these for winter or low-sun areas)
      • Kids’ Supplements: Chewable tablets or drops (400 IU—critical for growing bones and immune health)
    • Fortified Foods & Beverages
      • Dairy Products: Added to milk, yogurt, and cheese (boosts bone health—matches the calcium in dairy perfectly)
      • Plant-Based Alternatives: Fortified in oat milk, almond milk, and vegan cheeses (fills the gap for vegans/vegetarians)
      • Breakfast Cereals: Sprinkled on cereal or granola (easy morning dose—great for busy families)
    • Specialized Uses
      • Infant Formula: Included in baby formula (400 IU per serving—supports baby’s bone growth and immune development)
      • Pet Supplements: Tiny doses (100–400 IU) in dog/cat vitamins (supports senior pets’ joint health and immune function)
    • Skincare (Rare, Topical)
      • Anti-Aging Serums: Small amounts of D3 (supports skin barrier repair—calms dry, irritated skin; not as common as oral use)

Key Benefits (Why Vitamin D Is a Must-Have!)

  • Bone Health: Helps the body absorb calcium and phosphorus—prevents weak bones (osteoporosis) and rickets in kids (the #1 known benefit!)
  • Immune Support: Keeps the immune system strong—lowers the risk of colds, flu, and other infections (especially important in winter)
  • Mood Regulation: Linked to better mood—low levels are often tied to seasonal depression (SAD) in cold climates
  • Muscle Function: Supports muscle strength and recovery—helps with daily movement and workout performance
  • Heart Health: May help maintain healthy blood pressure and cholesterol levels—supports long-term cardiovascular wellness

Quick Tip

Since Vitamin D is fat-soluble, take it with a meal that has a little healthy fat (like eggs, avocado, or nuts)—this helps your body absorb it 2–3x better! If you live in a place with short winter days, ask your doctor to check your levels—many people need a boost this time of year.
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Vitamin D | Bulk Supplier & Factory OEM Manufacturer | AIHerba®

CAS No.: 67-97-0
Molecular Formula: C₂₇H₄₄O
Active Ingredient: Cholecalciferol (Vitamin D₃) / Ergocalciferol (Vitamin D₂)
Specification: 500,000 IU/g – 1,000,000 IU/g (HPLC)
Appearance: White to off-white crystalline powder
Grade: Food Grade / Pharmaceutical Grade / Cosmetic Grade
Origin: Extracted and synthesized under GMP standards, Shaanxi, China

1. Product Overview

Vitamin D is a fat-soluble vitamin essential for calcium absorption, bone health, immune regulation, and hormonal balance. AIHerba® provides high-purity Vitamin D₂ and D₃ for dietary supplements, fortified foods, cosmetics, and pharmaceutical applications.

As a GMP-certified Vitamin D manufacturer and bulk supplier, AIHerba ensures consistency, stability, and bioavailability through advanced micro-encapsulation and supercritical CO₂ purification technologies.

2. Product Source & Extraction Process

Vitamin D₃ (Cholecalciferol) is naturally derived from lanolin (sheep wool grease) through a UV irradiation process that converts 7-dehydrocholesterol to active Vitamin D₃.
Vitamin D₂ (Ergocalciferol) originates from yeast or plant sterols, using controlled UV exposure for activation.

Production Flowchart

  1. Raw Material (Lanolin or Ergosterol)

  2. Purification & UV Conversion

  3. Solvent Extraction (Food-grade ethanol)

  4. Crystallization & Drying

  5. HPLC Purity Testing

  6. Micro-Encapsulation (for enhanced stability)

  7. Final QA Inspection & COA Release

3. Health Benefits

  1. Bone Health & Calcium Absorption – Enhances intestinal absorption of calcium and phosphorus to prevent rickets and osteoporosis.

  2. Immune Support – Modulates innate and adaptive immunity; linked to reduced respiratory infections (NIH, PubMed: PMID 30675873).

  3. Hormonal & Mood Regulation – Supports endocrine balance, potentially improving mood and reducing depression risk (PubMed: PMID 31319103).

  4. Skin Health – Promotes skin repair and reduces inflammation in cosmetic formulations.

  5. Metabolic Health – Contributes to insulin sensitivity and cardiovascular protection.

4. Traditional and Modern Applications

Industry Application Example
Dietary Supplements Capsules, softgels, gummies, and tablets for bone & immune support
Functional Foods & Beverages Vitamin-fortified milk, juices, cereals, nutrition bars
Pharmaceuticals Vitamin D analogs in prescription therapy for deficiency or osteoporosis
Cosmetics & Personal Care Skin-renewing and brightening formulations, anti-aging serums
Veterinary Nutrition Animal feed fortification for bone growth and metabolic support

5. Recommended Dosage & Formulation Guidelines

  • Dietary Supplements: 600–2000 IU/day (adults), depending on deficiency status

  • Functional Foods: 5–20 µg/serving (EU Regulation EC No 1925/2006)

  • Cosmetics: 0.01–0.1% w/w as active in emulsions or creams

  • Synergistic Formulation: Combine with Vitamin K2 (MK-7), Calcium, and Magnesium for optimal bone health synergy

6. Specification Sheet (COA Summary)

Parameter Specification Test Method
Appearance White to off-white powder Visual
Identification Positive HPLC / UV
Assay (Content) ≥ 99.0% HPLC
Loss on Drying ≤ 1.0% USP 731
Specific Rotation +105° to +112° USP 781
Residual Solvent ≤ 0.5% GC
Particle Size 95% pass 80 mesh Sieving

7. Pesticide Residue Analysis

Item Limit (mg/kg) Test Method
Organochlorine Pesticides ≤ 0.1 GC-MS
Organophosphorus Pesticides ≤ 0.2 GC-MS
Pyrethroid Pesticides ≤ 0.2 GC-MS

8. Heavy Metals Analysis

Item Limit (ppm) Test Method
Lead (Pb) ≤ 1.0 ICP-MS
Arsenic (As) ≤ 1.0 ICP-MS
Cadmium (Cd) ≤ 0.5 ICP-MS
Mercury (Hg) ≤ 0.1 ICP-MS

9. Microbiological Tests

Item Specification Test Method
Total Plate Count ≤ 1000 CFU/g USP 2021
Yeast & Mold ≤ 100 CFU/g USP 2021
E. coli Negative USP 2022
Salmonella Negative USP 2022
Staphylococcus aureus Negative USP 2022

10. Storage, Shelf Life & Packaging

  • Storage: Keep in a cool, dry, and dark place below 25 °C, away from direct sunlight and moisture.

  • Shelf Life: 24 months when properly stored in sealed containers.

  • Packaging: 1kg/aluminum foil bag; 25kg/fiber drum.

  • Samples: Free sample available for quality evaluation.

  • MOQ: 1kg for trial order; bulk 25kg+ discounted pricing.

  • Shipping: By air, sea, or express (DHL/FedEx/UPS) with export documentation and MSDS.

11. Certifications & Quality Assurance

✅ GMP & ISO9001 Certified Factory
✅ Food-Grade and Pharmaceutical-Grade Compliance
✅ Third-Party Tested (SGS / Eurofins)
✅ COA, MSDS, and Stability Data Available
✅ Traceable Batch Records & Supply Chain Transparency

12. Why Choose AIHerba® Vitamin D

  • Over 28 Years of Extraction & Formulation Expertise

  • Custom OEM / ODM Support for dietary supplements, food fortification, and cosmetics

  • High Bioavailability & Stability via micro-encapsulation

  • Flexible Packaging & Global Logistics Support

  • Trusted by clients in 80+ countries

13. Safety & Precautions

  • Excessive intake may cause hypercalcemia; consult healthcare professional before use.

  • Not recommended for children under 3 without medical supervision.

  • Keep out of reach of children.

14. Scientific References

  1. National Institutes of Health (NIH): Vitamin D Fact Sheet

  2. PubMed: “Vitamin D and Immune Function” (PMID: 30675873)

  3. FDA CFR 21 §184.1950 – Vitamin D as a Nutrient Additive

  4. EFSA Journal (2016): Scientific Opinion on Dietary Reference Values for Vitamin D

15. Contact & Ordering

AIHerba® | Shaanxi Zhonghong Investment Technology Co., Ltd.
📍 Factory Location: Xi’an, Shaanxi Province, China
📧 Email: sales@aiherba.com | info@aiherba.com | liaodaohai@gmail.com
🌐 Website: www.aiherba.com
🔹 China Natural Plant Extracts Supplier & OEM Factory
🔹 Free Sample Herbal Extract | Customized Vitamin D Formulation | Bulk Manufacturer | GMP Certified Plant Extract Supplier

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