At Kappa Bioscience, we don’t believe in ‘just OK’. When it comes to your health, when is ‘just OK’ ever good enough anyway? 


So, it’s time to take a stand and make a difference. Every day, K2VITAL® does something that our clients appreciate. It works! K2VITAL® is the first (wo)man-made, large-scale nature identical vitamin K2 MK-7 in its purest form, with a minimum 99% all-trans content*. Quality is what we stand for, and quality is what you get – with K2VITAL®.

* average value 99.5%

We get our kicks providing you with high quality vitamin K2. That’s why K2VITAL® contains >99% of the bioactive form of vitamin K2 – known as all-trans isomers. The menaquinones found in nature exist in an all-trans configuration, meaning they have an extended system of isoprenoid units and are consequently linear. This allows the molecule to bind to the correct enzymes to activate the benefits of vitamin K2 MK-7. So, if you’re dealing with all-trans, you’re dealing with all-bioactive. 

Bioactive, nature-identical vitamin K2 MK-7 molecule – also known as K2VITAL®

There’s also the inactive form of the molecule, known as cis isomers. Their shape differs substantially from that of the all-trans form. Because of this, cis isomers may not fit where they are supposed to, leaving K2-dependent proteins inactivated. 


The US Pharmacopeia monograph requires a content of >98% all-trans. However, determination in finished supplements rarely happens, allowing low-quality products to enter the market and under-perform in K2 efficacy. The problem is you can’t see it on the label. In fact, consumer product testing consistently demonstrates unacceptably high numbers of MK-7 products containing high concentrations of the biologically inactive cis form of vitamin K2.⁽¹⁾ This means K2-dependent proteins are left inactivated, and so consumers won’t get the benefits they need and paid for. That’s why we want to join with you in taking a stand for great K2. 

As one of the purest, highest quality, all-trans K2 ingredients available, we can help you to raise the bar with K2VITAL®. In fact, our vitamin K2 is already used to set the US Pharmacopeia reference standards for the whole industry. K2VITAL® can be trusted.

There are a few things you don’t get when you buy K2VITAL®. Things like allergens, genetically modified organisms, and impurities.

This year alone, thousands of supplements will not deliver their promised benefits as a result of the manufacturer buying the wrong K2. Join us in taking a stand for high quality, for purity, for real consumer benefits. Read and download our brochures to learn more.

Worried about the quality of your K2? Well, it’s OK to have high standards. You do. We do. Get in touch today and we’ll test the label claim on your existing product.

 ⁽¹⁾K2VITAL® Delta market study – Kappa Bioscience

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