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Thorne Research, Vitamin K2, 1 fl oz (30 ml)

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Thorne Research, Vitamin K2, 1 fl oz (30 ml)

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Thorne Research, Vitamin K2, 1 fl oz (30 ml)

In Stock
  • Expiration Date: Dec 2018
  • Shipping Weight:
    0.25 lbs
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  • Product Code: THR-17001
  • UPC Code: 693749170013
  • Package Quantity: 1 fl oz (30 ml)
  • Dimensions:
    4 x 1.2 x 1.2 in, 0.15 lbs
    Switch to Metric units
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Product Overview


  • Dietary Supplement

Concentrated vitamin K2 in a convenient liquid form

  • To help maintain bone health
  • To support a healthy heart and blood vessels
  • To provide nutritional support for oncology patients
  • 1 mg of K2 (MK4) per drop

Vitamin K2 exerts a more powerful influence on bone than does vitamin K1. Vitamin K2 is a series of molecules known as menaquinones. The most common and well studied of the menaquinones is MK-4. Thorne's vitamin K2 is MK-4.

Vitamin K2 appears to offer significant benefit for supporting bone health. Although much of the vitamin K2 research has been conducted on postmenopausal support for bones, because vitamin K2 does not have any estrogenic effects, vitamin K2 also offers bone support for other populations, including anorexics, dialysis patients, individuals with Parkinson's disease, those who have cirrhosis of the liver, individuals who have had a bone marrow transplant, those immobilized after a stroke, and individuals on chronic steroid therapy.

Thorne's Vitamin K2 Liquid supplies 1 mg of vitamin K2 per drop. Research shows doses up to 15 mg three times daily may be used.

Suggested Use

Take 15 drops one to three times daily or as recommended by your health-care practitioner.

Other Ingredients

Medium chain triglyceride oil, mixed tocopherols.


Tamper Evident: Use only if bottle is sealed.

If pregnant, consult your health-care practitioner before using this product.

Store tightly sealed in a cool, dry place.

Supplement Facts Serving Size: Fifteen Drops Servings Per Container: 80   Amount Per Serving %Daily Value Vitamin K (as Vitamin K2 (Menatetrenone))† 15 mg 18,750% Daily Value (DV)
iHerb Customer Reviews

The bottle is not practical anymore

Posted by iHerb Customer on Sep 17, 2017 | Verified Purchase

I like this product and have been using it for a while. However, they have changed the bottle recently and there's no integrated dropper anymore. Now you have to shake fast just to have one drop, it's frustrating and not practical.

Thanks for your feedback!

Should make a smaller bottle.

Posted by iHerb Customer on Sep 10, 2017 | Verified Purchase

Seems like a good product. I like how it doesn't have all the additives that are found in most supplements. I think however that the bottle is too big if you only take a moderate dose like I do (two drops per day). A warning: Don't overtighten the lid otherwise you will break the rubber seal.

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This product is easy to take.

Posted by iHerb Customer on Sep 09, 2017 | Verified Purchase

The purity and the concentration of this supplement, in liquid form, makes it perfect for anyone to use.

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Doesn't work

Posted by iHerb Customer on Aug 25, 2017 | Verified Purchase

This product is in my opinion not worth the money. It doesn't work at all. After months of taking it I see no improvements.

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Maybe the product is good, but it stinks and tastes terribly

Posted by iHerb Customer on Jul 26, 2017 | Verified Purchase

I bought this for my young kids who aren't able yet to swallow pills and capsules, but the taste and smell are almost too disgusting for them to swallow. It is as if for this 30 ml bottle of over USD60, the manufacturer bought the cheapest rancid oil possible in order to save 5 cents the bottle. What would 30 ml of some decent oil have cost? I buy my fresh coconut oil for USD3/liter, so 30 ml of some decent oil would have cost a mere 10 cent max.! I would have been happy to pay 10 cents more for something that is at least edible. Bad move, I don't think we'll order this again...

Thanks for your feedback!