Vitamin K2 (Menaquinone-7, MK-7) is a food-grade fat-soluble vitamin produced by bacterial fermentation (Bacillus subtilis natto) or synthesis, essential for activating osteocalcin and matrix Gla protein.We supply bulk Vitamin K2 sourced from leading China manufacturers, available in powder, pellet and oil forms for food and beverage manufacturers worldwide. Our Vitamin K2 is widely used in osteoporosis supplements, artery-health formulas, vitamin D3 combination products, adult multivitamins and longevity supplements.
Vitamin K2 (MK-7) is produced by Bacillus subtilis var. Natto fermentation or chemical synthesis.
This yields all-trans menaquinone-7 isoform with longest biological half-life (~72h). As a cofactor for γ-carboxylation, it activates osteocalcin (directing calcium to bones) and matrix Gla protein (preventing arterial calcification), clinically validated for bone density, cardiovascular health and calcium-utilisation optimisation.
Grades / Types Available: Food Grade
| Item | Specification |
|---|---|
| Appearance | Yellow powder (beadlet) or yellow oil |
| Assay (MK-7, HPLC) | 0.2–2.0% (beadlet) / ≥95% (pure) |
| All-trans Isomer | ≥98% |
| Moisture | ≤5.0% |
| Carrier (beadlet) | Maltodextrin / gum arabic |
| Particle Size (80 mesh) | ≥95% |
| Solvent Residue | Complies with USP |
| Heavy Metals (as Pb) | ≤10 mg/kg |
| Arsenic | ≤2 mg/kg |
| Total Plate Count | ≤1,000 cfu/g |
| Salmonella | Absent in 10g |
| Purity | 99% (Food Grade) |
| Lead | <1 ppm (Food Grade) |
| Yeast & Mold | <100 cfu/g (Food Grade) |
Our MOQ for bulk food/feed ingredient is generally 500 kg. We also support mixed containers — combine Vitamin K2 with other food ingredients in one shipment to save on freight.
We provide free samples (100–500g) for quality testing before you place a bulk order. The buyer covers shipping costs only. Samples are typically dispatched within 2–3 business days.
Standard lead time is 7–15 days after order confirmation and payment. For stock items, delivery can be faster. We will confirm the exact timeline before you place the order.
You will receive the original COA (Certificate of Analysis), COO (Certificate of Origin), MSDS, TDS, and relevant certifications directly from the manufacturer. We guarantee full document authenticity and traceability.
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Whether you're sourcing bulk ingredients or mix container, contact our team for pricing, free samples, and technical support.