Product Information
Vit MK7 (CAS 2124-57-4) belongs to the Vitamin K2 family, characterized by a side chain with 7 isoprene units. As a fat-soluble vitamin essential to human health, it stands out as the most bioavailable form of Vitamin K2-boasting easier absorption and longer-lasting activity in the body. Extensive research highlights its ability to support bone health by enhancing bone density, improving bone quality and strength, and promoting collagen synthesis, while it also plays a valuable role in supporting vascular health and overall wellness. Vitamin K2 has multiple isoforms, with MK-4 and MK-7 being the most prominent; while MK-4 is found in fermented animal products and some plant-based foods, MK-7 is primarily derived from fermented sources like natto.
As a professional Vitamin K2-MK7 supplier based in China, LonierHerb takes pride in our high-quality products sourced from non-GMO fermented natto-ensuring purity and natural origin. We offer a full range of specifications to meet diverse application needs, including 0.2%, 0.3%, 0.5%, 1%, and 1.3%. Quality is our top priority: every batch of our Vitamin K2 MK7 Bulk Powder undergoes strict testing before shipment, guaranteeing full compliance with set specifications, and with abundant in-stock inventory, we can fulfill orders and arrange shipment in a timely manner to meet your urgent needs.

Efficacy and Features
1) It is fermented by natural natto bacteria, not artificially synthesized, and its production and manufacture fully comply with EU GMP and FDA operating specifications, ensuring more than 99%.
2) Vit K2 MK7 is a cofactor in vitamin K-dependent responses and a key factor in the carboxylation of osteocalcin.
3) Completely carboxylated osteocalcin is more conducive to helping calcium deposition into bones, while it can continuously promote uncarboxylated osteocalcin to complete its carboxylation reaction.
4) Most of the current osteoporosis prevention and calcium supplement products are mainly calcium and vitamin D3 products. If there is no MK7, calcium will easily be lost to the blood or other places after entering the body. Helps increase osteocalcin, but cannot help calcium enter bones, only vitamin K2-7 can activate osteocalcin and help calcium be absorbed by bones instead of being enriched in parts such as the heart or arteries, causing possible Cardiovascular diseases.
5) Only the synergistic effect of calcium, vitamin D3 and MK7 vitamin
can better utilize and absorb calcium, enhance bone health and stay away from the risk of cardiovascular disease.
6) There are various oil and powder grades: 1000ppm powder, 1500ppm oil, 2000ppm powder.

Certificate of Analysis
|
Product Name |
Vitamin K2–MK7 (Menaquinone-7) |
||
|
CAS No. |
2124-57-4 |
Report Number |
MKN20260134 |
|
Batch Number |
MKN260109 |
Manufacture Date |
2026/01/09 |
|
Batch Quantity |
200Kg |
Expiry Date |
2028/01/08 |
| Test Items | Test Standard | Test Result | |
|
Appearance |
Off-white to White Powder |
Conforms |
|
|
Assay (HPLC) |
≥ 1.0% |
1.39% |
|
|
Condition |
No offensive taste and smell. |
Conforms |
|
|
Carrier |
Dibasic Calcium Phosphate(DCP) |
Conforms |
|
|
Loss on Drying |
≤14.0% |
4.36% |
|
|
Residue on Ignition |
≤0.1% |
Conforms |
|
|
Heavy Metal |
≤20ppm |
Conforms |
|
|
Arsenic (As) |
≤2ppm |
Conforms |
|
|
Lead (Pb) |
≤2ppm |
Conforms |
|
|
Arsenic (As) |
≤2ppm |
Conforms |
|
|
Cadmium (Cd) |
≤0.3ppm |
Conforms |
|
|
Mercury (Hg) |
≤0.3ppm |
Conforms |
|
|
Total Aerobic Count |
≤1000cfu/g |
120cfu/g |
|
|
Yeast & Moulds |
≤100cfu/g |
10cfu/g |
|
|
E-Coli |
Negative |
Conforms |
|
|
Salmonella |
Negative |
Conforms |
|
|
Staphylococcus Aureus |
Negative |
Conforms |
|
|
Conclusion |
To be complied with in-house Specification |
|
|
|
Shelf Life |
2 years when properly stored. |
||
|
Storage |
Store in cool & dry place, not freeze. Keep away from strong light. |
||
Third Party Test Report

What is the difference between MK4 and MK7?
Bulk Vitamin K2 can be divided into several different subtypes, the most important being Menaquinone MK4 Powder and Menaquinone MK7 Powder, both of them are very important to the human body, so what is the difference between two different forms?
It is mainly found in animal products, including animal offal, egg yolks and animal fats. It is obtained by animals transforming vitamin K1, that is why the butter produced by cattle and sheep that eat fresh grass is rich in Vitamin K2. At present, most of them are obtained through chemical synthesis and are mainly used for symptoms such as osteoporosis.
◆ Vitamin K2 MK-7
Bulk Menaquinone Mk7 comes mainly from fermented foods, especially natto, which is currently the main source. Its side chain is longer than that of MK4, so it can exist in the human body for a long time, and its bioavailability in extrahepatic tissues is higher. Now it is widely used for osteoporosis, improving arterial calcification, treating Parkinson‵s disease.

Lonierherb certificate

FAQ
※ Do you have factory ?
Yes, we have a 1500m2 factory with modern equipment, welcome to visit our factory. When you have the details schedule, please kindly let me know in advance.
※ Do you have GMP ?
All of our products are produced according to GMP standard, meanwhile, we have obtained ISO22000, Halal Certificate and so on.
※ What is the production process ?
It primarily utilizes patented Bacillus subtilis fermentation in natto, combined with supercritical fluid extraction technology. The entire process leaves no harmful chemical solvent residues, ensuring high safety and resulting in a naturally fermented product.
※ Can it be used in combination with other nutrients?
Vitamin K2 MK7 Bulk Powder is very suitable for use in combination. When combined with calcium and vitamin D, it can significantly improve calcium absorption and utilization, making it a classic combination for bone health products. When combined with cardiovascular-friendly ingredients such as phytosterols, it can enhance the protective effect on vascular health.
※ What is your delivery time ?
As usual, our delivery time is about 1~3 days after receipt of payments, however, for some special products, please kindly confirm with your sales manager in advance.
※ How can you confirm your quality?
Product quality is fully controllable from production to delivery: the production process follows cGMP standards and uses advanced processes such as supercritical extraction to ensure purity and activity; before each batch of products leaves the factory, core indicators such as purity, heavy metals, and microorganisms are tested, and a certificate of conformity (COA) is attached with each shipment; at the same time, a full traceability system is established from raw material procurement to finished product delivery to ensure that customers can verify relevant product information and ensure consistent and stable quality.
Exhibitions
LonierHerb frequently participates in various international food and health products exhibitions. We sincerely hope to have the opportunity to meet you at our booth in future exhibitions.

Lonierherb Factory
- All goods are manufactured in GMP standard facilities.
- All goods are released after inspection by our independent laboratory or third party.
- All goods are transported by professional freight companies.

Whether you have questions about the specifications, pricing, or shipment details of Vit MK7, our professional team is always on hand to assist you. We are committed to providing tailored solutions that align with your business needs and strive to establish long-term, reliable cooperation with you. Your inquiry is highly valued, and we eagerly look forward to hearing from you soon! Email:info@lonierherb.com or whatsapp/Wechat/Skype:86-17702909819.
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