What is Vitamin K2 Bulk Powder?
Vitamin K2 Bulk Powder is a nutritional supplement, a high-purity, free-flowing nutritional ingredient, which is specifically aimed at industrial use in the nutraceutical, pharmaceutical, and functional food industries. It contains menaquinone compounds, the biologically active forms of Vitamin K2, MK-4 or MK-7, known to have an effect on calcium metabolism and the general skeletal and vascular well-being. This bulk-grade powder is supplied in standardized concentrations and has a high level of consistency, solubility, as well as stability, so it is better suited to manufacturers where consistency of ingredients is critical in formula and production. It is produced by either high-level microbial fermentation or chemical synthesis and is usually microencapsulated to improve its oxidation, heat, and moisture resistance, which are important in maintaining stability during long-term blending, packaging, and storing of the product. It has reached its fine particle size and flow properties that can be easily incorporated into tablet, capsule, softgel, beverage, and powder formulations, facilitating high-speed automated production regimes. The ability of the ingredient to be combined with a wide variety of excipients and micronutrients, including Vitamin D3, calcium, and magnesium, allows the ingredient to be used with a wide selection of micronutrients to develop multi-nutrient formulations that can serve bone and cardiovascular health markets.

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| Item | Specification | Test Method | Results |
| Appearance | White to light-yellow powder | Visual Inspection | Complies |
| Identification | Positive for Vitamin K2 (MK-7 or MK-4) | HPLC | Complies |
| Assay (Vitamin K2, as MK-7/MK-4) | 1.50% | HPLC | 1.52% |
| Loss on Drying | ≤ 2.0% | ASTM D280 | 1.50% |
| Residue on Ignition | ≤ 0.5% | AOAC 923.03 | 0.30% |
| Heavy Metals (as Pb) | ≤ 2.0 mg/kg | ICP-MS | 1.0 mg/kg |
| Arsenic (As) | ≤ 1.0 mg/kg | ICP-MS | 0.2 mg/kg |
| Cadmium (Cd) | ≤ 1.0 mg/kg | ICP-MS | 0.1 mg/kg |
| Mercury (Hg) | ≤ 0.1 mg/kg | ICP-MS | <0.05 mg/kg |
| Microbial Limits | |||
| Total Plate Count | ≤ 1000 CFU/g | USP 2021 | 500 CFU/g |
| Yeast & Mold | ≤ 100 CFU/g | USP 2021 | 30 CFU/g |
| E. coli | Negative / g | USP 2021 | Negative |
| Salmonella | Negative / 25g | USP 2021 | Negative |
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Features
Vitamin K2 Powder has its own physical and chemical properties, which include a peculiar combination to be used in industrial formulation and mass production. It is in fine, free-flowing fine yellow to light orange powder of high dispersibility with a regular particle size that is easy to handle and consistently blends into automated production systems. On a chemical basis, it is principally composed of menaquinone-7 (MK-7) or menaquinone-4 (MK-4), which are fat-soluble menaquinones that are characterized as highly biologically active and are well-stable in a molecular form. The lipophilic nature means that it is usually stabilized by microencapsulation or carrier-based granulation, preventing the oxidation, moisture, and ultraviolet destruction of the active molecule and giving it an excellent shelf life and the ability to maintain its potency. It is also sturdy in a controlled environment in terms of temperature and moisture, and it maintains its integrity when stored and transported. The powder is well-combined with other nutrients and excipients, such as minerals and vitamins, without any unwanted chemical reactions. In formulation, it is high purity, low dusting, and high flowability, which increase the efficiency of the process in high-speed tableting, encapsulation, and premix blending. Moreover, its extreme oil solubility, high acidity, and moderate cooking resistance allow broad usage in a variety of dosage routes and food systems. The following physical and chemical benefits are why it is a consistent high-performance raw material with which professional manufacturers, especially those concerned with particular consistency, process stability, and bioactivity of the final products.
How to Store Properly?
1. Store in a Cool, Dry Environment
Once delivered, the powder ought to be stored in a temperature-controlled storage, preferably less than 25 ℃, and not near direct heat sources and moisture. High humidity or temperature may eventually weaken the strength and stability of the product.
2. Protect from Light Exposure
The product is already safely packed into light-resistant foil or composite drums, but storage as recommended by manufacturers is in a shaded or dark environment because of the potential degradation of the menaquinone compounds by UV radiation.
3. Keep Packaging Intact Until Use
One is not supposed to open the sealed inner aluminum bag or drum lining until the material is needed. An untimely opening may subject the powder to air and moisture that may increase oxidation.
4. Avoid Frequent Temperature Fluctuations
Storage places are to be kept at a regular temperature. The nature of frequently alternating between cold and hot temperatures may result in condensation of the inside of the packaging that could cause a clump or low quality.
5. Use Hygienic and Controlled Conditions
It is important that the powder be stored in a clean and well-ventilated, contamination-free area, and kept apart from substances high in odor or volatile chemicals that may interfere with the integrity of the product.
6. Follow First-In, First-Out (FIFO) Inventory Management
Manufacturers ought to embrace FIFO in a bid to ensure maximum freshness and efficacy, whereby the batches received first ought to be used before the more recent batches.
7. Seal Tightly After Partial Use
In case a part of a drum or bag is utilized, the rest of the Vitamin K2 must be sealed up as soon as possible with moisture-proof sealing materials, and they must be stored under the same conditions to maintain the quality of the powder.

Recommended Usage
Vitamin K2 MK7 Powder is normally used by manufacturers as an active ingredient for functional use in the formulation of advanced nutrition and health-related products in various industrial segments. When high-volume production is necessary, it is present in complex mixtures of micronutrients, fortification systems, and bioactive preparations in which tight dosage regulation and even dispersion are needed. It is an important ingredient in the formulation of bone-support formulas, cardiovascular wellness compounds, and metabolic balance formulae that are typically found in tablet, capsule, and powder forms. In addition to conventional dietary supplements, it is also being used clinically as well as in medical-grade foods and fortified meal replacement products, where formulation precision and stability over time are of great importance. It is also used in the food technology industry to fortify dairy alternatives, nutritional beverages, and bakery premixes of plant-based origin to assist the brands in increasing their functional value and nutritional profile. Its ability to dissolve in emulsified systems and dry mix also provides the opportunity to use it in pharmaceutical intermediate and fortified nutritional coating applications, where the ability to control release and maintain the integrity of the ingredient is needed. It is also highly thermal and oxidative stable, which makes it a good choice in a range of processing conditions like blending, granulation, and spray drying. To manufacturers, the versatility of the powder enables effective incorporation into unique formulations to suit particular market segments, as well as assisting innovation in the growing functional nutrition industry, food technology industry, and health supplement industry.
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