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

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

In Stock
  • Expiration Date: Jul 2018
  • Shipping Weight:
    0.11 kg
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  • Product Code: THR-50001
  • UPC Code: 693749500018
  • Package Quantity: 1 fl oz (30 ml)
  • Dimensions:
    10.7 x 3.3 x 3.3 cm , 0.07 kg
    Switch to Imperial units
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Product Overview


  • Dietary Supplement

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 Research's vitamin K2 is MK-4. Vitamin K is essential for normal cell formation and to help maintain a healthy cardiovascular system.

It is essential to maintain an optimal level of vitamin D through all stages of life, from fetal development to old age. Vitamin D helps support a number of important systems in the body, including muscle and bone health, as well as cardiovascular and immune function.

Combining vitamins D and K might provide synergistic protection of these systems. One study in postmenopausal women found a combination of minerals along with vitamins D and K maintained healthy artery elasticity, compared to two other groups of women who received either minerals with vitamin D but not vitamin K, or placebo.

Thorne Research's Vitamin D / K2 Liquid is in medium chain triglyceride oil, preserved with mixed tocopherols.

Suggested Use

Take 2 drops one to three times daily or as recommended by your health-care practitioner. Invert bottle to dispense individual drops. May be added to food or mixed in beverages.

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 closed in a cool, dry place.

Supplement Facts
Serving Size: Two Drops
Serving Per Container: 600
  Two Drops Contain: % DV
Vitamin D (as Vitamin D3) 1,000 IU 250%
Vitamin K (as Vitamin K2 (Menatetrenone))† 200 mcg 250%
Daily Value (DV)
iHerb Customer Reviews

great product by Thorne but packaging needs to improve

Posted by 5734705272302049910 on Jul 25, 2017 | Verified Purchase

Wish Thorne would put in a pipette top. It's difficult to get 2 drops without splashing the liquid out my cup by shaking and ended up with a wet bottle.

Thanks for your feedback!

A staple for living in the Pacific NW !!

Posted by 5571215802224434801 on Jul 24, 2017 | Verified Purchase

Living in the Pacific NW where the sun is deficient during the winter months, this product is a must for me!!!

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very good. I recommend!

Posted by eliguy on Jul 15, 2017 | Verified Purchase

very good. I recommend!

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Liquid vitamin D/K2

Posted by 5440351378608996018 on Jul 07, 2017 | Verified Purchase

This product worked better for me when the bottle had a dropper instead of a regular cap. I take 6 drops daily and since the packaging was changed this doesn't work for me.

Thanks for your feedback!

The D3/K2 combination is good.

Posted by 5251791744971897006 on Jun 29, 2017 | Verified Purchase

I have reviewed this product before. It is an excellent product. Thorne creates good products.

Thanks for your feedback!