liquid vitamin k2 in a vial in the laboratory

K2VITAL® Vitamin K2, pure and stable

We wouldn’t have it any other way. Patented, typically 99.7% all-trans K2 MK-7, identical to the K2 molecule found in nature and fully bioactive, so your consumers get the best possible benefits for their bones, heart, and body.

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K2VITAL® Cutting edge, not cutting corners

We use state of the art technology, world-class expertise and a one-of-a-kind production process to make K2VITAL® -our all-trans vitamin K2 MK-7, with unmatched stability and typically 99.7% purity.

In recognition of this unprecedented quality and purity K2VITAL® has become the Reference Standard for the United States Pharmacopeia, used globally as the benchmark for K2 analysis and cis/trans purity assessments.

With K2VITAL®, we’re setting bold new standards for our industry, helping our partners make groundbreaking products, and make them available to everyone.

Bottles of K2VITAL oil

Meet the K2VITAL® product range

We’ve designed our K2VITAL® product range to fit any formulation, from tablets to softgels, powders to liquids, gummies to oral sprays. K2VITAL® and K2VITAL® DELTA can also be added alongside other ingredients, such as vitamin D, calcium, magnesium, omega-3, multivitamins, probiotics, or botanicals.

  • K2VITAL® MCT oil:
    for oil-based, soft capsules and pastille formulations
  • New! K2VITAL® MCT organic:
    a certified-organic version. Only available in the US.
  • K2VITAL® MCC powder:
    for dry powder formulations
  • K2VITAL® DELTA microencapsulated powder:
    for all types of formulation
  • K2VITAL® ALPHA concentrated K2 MK-7 powder for customized solutions

Vitamin K2 is a fat-soluble vitamin that plays a central role in regulating calcium metabolism.

All over the body, vitamin K2 activates vitamin K-dependent proteins, which help get calcium to where it's needed.

Microscope view at laboratory

Our product development and consultancy services

Years of experience in our sector, along with mountains of consumer insights and a passion for creating innovative products based on vitamin K2, help us deliver a range of services that take sophisticated science and turn them into simple solutions for our partners and the people that count on them.

Let experts guide you

Why we Need K2

Vitamin K2 is an essential vitamin that’s needed all over the body, at every stage of our lives. It’s responsible for activating calcium-binding proteins, helping calcium get to where it’s needed. Sometimes it’s for building and maintaining healthy bones and teeth, and other times, preventing harmful calcium deposits.

picture of a plate set on a table

K2 in Food

Studies show that modern Western diets only provide us with a limited amount of vitamin K2.  
For a long while, human diets provided plenty of vitamin K2. But that stopped being the case somewhere along the way, and many people started developing vitamin K2 deficiency.
Dietary recommendations for vitamin K range between 75 to 120 mcg per day, but these can be higher for specific populations. No matter who we are or what we do, vitamin K2 is involved in various processes in the body.

graphic of the chemical composition of vitamin k1 and k2

K1 and K2

We’ve seen a lot of confusion around the differences between vitamins K, K1 and K2. We’d like to help clear things up.
Vitamin K is a fat-soluble vitamin that exists naturally in multiple forms K1 (phylloquinone) or K2 (menaquinone).

Vitamin K1: is found in high amounts in leafy green vegetables. It has a short half-life and is mainly used by the liver to support blood clotting. Deficiencies are rare.
Vitamin K2: also known as menaquinone, is typically found in animal-derived and fermented products. Unlike K1, vitamin K2 is not mainly used by the liver, but also by our bones and vasculature.

It activates many vitamin-k-dependent proteins, such as osteocalcin or matrix Gla protein, which play roles in building and maintaining bone mass and supporting healthy circulation and blood vessels. Many of us consume low amounts of vitamin K2.

Detail view of oil under microscope

K2 Subtypes

Vitamin K2 has dozens of subtypes, called menaquinones (all named after the length of their molecular chain, now that you ask). The most well-known menaquinones are menaquinone-4 (MK-4), and menaquinone-7 (MK-7). Due to its exceptionally high bioavailability and long half-life, supplementation in the form of vitamin K2 as menaquinone-7 (MK-7) is recommended, as this means there’s enough vitamin K for the carboxylation of target proteins outside the liver.

All trans k2 vital Logo

Cis and trans

In nature, menaquinones are found in a linear configuration, called trans. This is what’s known as the bioactive form, the form our bodies can use in food supplements.

Because of inferior production methods or stability issues, it can take a non-linear, cis shape. Cis forms cannot fit in their target, and thus fail to activate vitamin K-dependent proteins. This makes them biologically inactive.

About Kappa

Kappa Bioscience AS was founded in Oslo, Norway, in 2006 when a brilliant scientist discovered the synthesis of pure, all-bioactive vitamin K2 MK-7. This essential vitamin helps to direct calcium around our bodies and supports bone and heart health.

From vitamin K2 and turn-key solutions, to research and marketing initiatives, to product launches and growth strategies, Kappa Bioscience AS believes in doing it right. That means developing products and services that set new standards of excellence, made with integrity and through close collaboration.

Avatar of Jon Erik the Vice President Production of Kappa Bioscience
"Our highly controlled, patented production process in Oslo, Norway, yields the most refined material possible. In fact, K2VITAL® is regarded as an MK-7 reference standard for analytical labs."

Jon Erik Brænden, Vice President Production, Kappa Bioscience