Manufacturer | Thorne Research |
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Manufacturer reference | ZKD500 |
Product Dimensions | 3.18 x 3.18 x 8.51 cm; 77.11 g |
ASIN | B07B6GGYTK |
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THORNE - Vitamin D/K2 Liquid (Metered Dispenser) - Dietary Supplement with Vitamins D3 and K2 to Support Healthy Bones and Muscles - 1 Fluid Ounce (30 mL)
Purchase options and add-ons
Brand | THORNE |
Item form | Liquid |
Primary supplement type | Vitamin K2,Vitamin K,Vitamins D3,Calcium,Vitamin D |
Flavour | Unflavored |
Product benefits | Cardiovascular Health |
About this item
- Bone & Muscle Health: Both vitamin D and vitamin K2 support bone and muscle health, along with cardiovascular health and immune function
- Promote Calcium Absorption: Vitamin D is necessary for calcium absorption, and vitamin K is important for directing calcium to the bones and away from the soft tissues, such as the blood vessels and kidneys
- Combo Effect: Vitamin D/K2 Liquid is a convenient way to supplement with both vitamins D3 and K2, which offer greater support together
- Third-Party Certified: This product has been third-party tested and certified to verify what's in the package matches what's on the label and to confirm it contains no unsafe levels of contaminants
- NPN 80019170
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Important information
Safety Information
Risk Information: Consult a health-care practitioner prior to use if you are taking blood thinners. Keep out of reach of children. Do not use if security seal over the cap is broken. Store tightly sealed in a cool, dry place.
Indications
Bone and Joint Support
Ingredients
Two Drops Contain: Vitamin D (as Vitamin D3) 12.5 mcg, Vitamin K (as Vitamin K2 (Menatetrenone))* 100 mcg, *MK4. Other Ingredients: Medium Chain Triglyceride, Mixed Tocopherols. Ingrédients médicinaux: Vitamine K2 (ménatetrenone) 100 mcg, Vitamine D3 (cholécalciférol) 12,5 mcg, Ingrédients non médicinaux: triglycérides à chaîne moyenne, tocophérols mixtes.
Directions
Take 1 drop daily or as recommended by your health professional. Invert bottle to dispense individual drops. May be added to food or mixed in beverages. Do not refrigerate.
Legal Disclaimer
These products are not intended to diagnose, treat, cure or prevent any disease. Please contact your healthcare professional immediately if you experience any unwanted side effects. The information contained herein is for informational purposes only and does not establish a doctor-patient relationship. Please be sure to consult your physician before taking this or any other product.Manufactured by Thorne Research, Inc. 620 Omni Industrial Blvd., Summerville SC 29486. Imported by GAB Innovations, Inc.7860 Venture Street, Burnaby, BC.
Actual product packaging and materials may contain more and different information than what is shown on our website. We recommend that you do not rely solely on the information presented and that you always read labels, warnings, and directions before using or consuming a product.
From the brand

Product Description


Vitamin D/K2 Liquid is a convenient way to supplement with both vitamins D and K2, which offer greater support for bones and the immune and cardiovascular systems together than either does individually.*
Trusted Manufacturer
For more than 30 years, Thorne has been trusted by normal-care practitioners who prescribe our products to their patients. Thorne products are a testament to Thorne's mission to provide high-quality supplements that are tested for quality, safety, and efficacy. Tested by NSF 2023.
Convenient Protocol
Vitamin D/K2 liquid can be mixed with a food or a beverage for ease of use for all ages.
Free of Additives
Vitamin D/K2 Liquid is preserved with natural vitamin E for freshness and is free of additives.
Unique Formula
The Vitamin D/K2 Liquid formula contains well-studied MK-4 as its form of vitamin K2.

We don’t give much thought to our bones – until we break one. Although we might think of our bones as inert structures – as scaffolding that holds us up, as protection for the body’s organs, and the structure that allows us to move about – bones are crucial to many more functions than that. Because our bones are living, dynamic, and constantly changing tissues, maintaining proper bone health is important.
Nutritional supplements provide essential support for bone health.* The four most important nutrients for supporting bone health are two vitamins and two minerals – vitamins D and K and calcium and magnesium.* These four nutrients help each other do their jobs, including sending calcium to the bones and keeping it out of the arteries, kidneys, and other soft tissues.*
*FDA disclaimer: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
When the highest standards have been met, Thorne creates higher ones.
Sourcing Exceptional Ingredients
We develop better standards for higher quality ingredients. Thorne cares deeply about where our ingredients come from. We partner only with suppliers whose practices emphasize quality, science, and responsibility. Better ingredients means better potency, absorption, and digestibility.
Manufacturing the Right Way
We manufacture our own products to ensure full supply chain transparency. For more than 30 years, we have invested in clean manufacturing practices. We refuse to use ingredients that can inhibit absorption. We perform our final production in the United States.
Four Rounds of Review
We run four rounds of testing for each of our products. We have invested in two state-of-the-art in-house laboratories that allow us to conduct four rounds of testing. We test our raw materials, in-process batches, finish products, and product stability for each product.
Our Impact
At Thorne, we believe that doing our part to protect the natural world and its most valuable resources goes hand in hand with our product quality standards.
Product information
Technical Details
Additional Information
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Product details
- Product Dimensions : 3.18 x 3.18 x 8.51 cm; 77.11 g
- Date First Available : May 7 2020
- Manufacturer : Thorne Research
- ASIN : B07B6GGYTK
- Manufacturer reference : ZKD500
- Country of origin : USA
- 鶹 Rank: #3,203 in Health & Personal Care (See Top 100 in Health & Personal Care)
- #51 in Vitamin D Supplements
- Customer Reviews:
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Customer reviews
Customers say
Customers like the quality, taste, and ease of use of the vitamin. They mention it has a great reputation and is easy to put in their smoothies. Customers are also satisfied with the absorption and value of the product. However, some customers have reported that the lid doesn't dispense drops and the applicator doesn’t release the drops. Opinions are mixed on the dispensing.
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Customers are satisfied with the quality of the vitamin. They mention it's an excellent product with great reputation. Customers also say it's one of the best vitamin D and K2 you can find.
"...Great product, no weird taste." Read more
"Excellent! Will order again!" Read more
"Good quality but didnt like that it didnt have a dropper...." Read more
"A high quality product." Read more
Customers like the taste of the vitamin. They mention it has no weird taste.
"Neutral taste, in order to get therapeutic results must be taken min 20 drops" Read more
"Great item, no after taste" Read more
"...Great product, no weird taste." Read more
"Great product. I love that it has no taste so I can use it for the whole family. The speed of the drops releasing is very slow...." Read more
Customers like the ease of use of the vitamin. They mention it's easy to take, put in their smoothies, and add to anything.
"I love these drops. They're easy to put in my smoothie and I make my dog lick some off my hand too...." Read more
"...This one is the most convenient. I just take 5 drops every morning...." Read more
"...Works great and easy to take." Read more
"Easy to take, combines D and K2 for better absorption. Good quality product." Read more
Customers like the absorption of the vitamin. They mention it combines vitamin D and K2 for better absorption.
"...option to take as it comes with vitamin d and k2 which is good for its absorption" Read more
"...the instructions and I'm pretty sure liquid drops will be absorbed very well taken orally. Awesome product!" Read more
"Easy to take, combines D and K2 for better absorption. Good quality product." Read more
"...My friend who is a naturopath recommended it as it’s the best way to absorb vitamin d." Read more
Customers have mixed opinions about the dispensing of the vitamin. Some mention it works well, while others say it's a waste of money.
"...Works great and easy to take." Read more
"...was an entire waste of money and cannot be used (nor returned)...." Read more
"Bought thorne for product quality. Works well." Read more
"Out of the box, this product is basically unusable. The applicator doesn't release the drops...." Read more
Customers are dissatisfied with the dropping speed of the vitamin. They mention the lid doesn't dispense drops, the applicator doesn’t release the drops, and the speed of the drops releasing is very slow. Some say they have to buy a separate dropper and keep it elsewhere.
"...Slow drip etc I see absolutely nothing wrong with it, the liquid drips out exactly as it should. Great price for value!" Read more
"...The speed of the drops releasing is very slow...." Read more
&ܴdz;...ճ’s no dropper, so I just turn the bottle upside down and let the drops come out. It’s not a bad design...." Read more
"...I opened up bubble wrap and was covered in liquid! I emailed Thorne as I could not get a refund for a defective product online...." Read more
Reviews with images

Very good but you'll need to adjust the dropper
Top reviews from Canada
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- Reviewed in Canada on May 3, 2025Verified Purchasebest vitamins d&k
- Reviewed in Canada on November 3, 2024Verified PurchaseThis is a fantastic product but mostly what I’d like to say is that I was a little worried about the dispenser and the reviews I’ve read. Slow drip etc
I see absolutely nothing wrong with it, the liquid drips out exactly as it should. Great price for value!
- Reviewed in Canada on February 24, 2025Verified PurchaseNeutral taste, in order to get therapeutic results must be taken min 20 drops
- Reviewed in Canada on March 3, 2025Verified PurchaseI agree with the other reviews that mention that it's very hard to get the vitamin D out of the bottle, but I found an easy fix. Just pull out the plastic bit at the top, cut the bottom off and put it back on. The drops come out faster but still in a controlled way.
4.0 out of 5 starsI agree with the other reviews that mention that it's very hard to get the vitamin D out of the bottle, but I found an easy fix. Just pull out the plastic bit at the top, cut the bottom off and put it back on. The drops come out faster but still in a controlled way.Very good but you'll need to adjust the dropper
Reviewed in Canada on March 3, 2025
Images in this review
- Reviewed in Canada on December 15, 2024Verified PurchaseI love these drops. They're easy to put in my smoothie and I make my dog lick some off my hand too. I love how it combines both Vitamin K and Vitamin D.
- Reviewed in Canada on January 31, 2025Verified PurchaseThorne has good, clean products that work well. A health addition to your supplement routine.
- Reviewed in Canada on April 22, 2025Verified PurchaseI take this everyday religiously, I want to think that it does something, but I can’t prove that to you. Out of all the variations of D3K2, this is by far my favourite. I recommend, especially if you haven’t touched grass in a while.
- Reviewed in Canada on June 18, 2025Verified PurchaseI'm sure the ingredients are perfect but there are no directions saying how many drops to take. I do not want to take too little or too much of Vit. D so I ordered another of the same ingredients that comes with a dropper showing how much you may want to take from a different vendor.
Disclaimer:While we work to ensure that product information is correct, on occasion manufacturers may alter their ingredient lists. Actual product packaging and materials may contain more and/or different information than that shown on our Web site. We recommend that you do not solely rely on the information presented and that you always read and follow labels, warnings, and directions before using or consuming a product. This product may not be right for you. For additional information about a product, please contact the manufacturer. Content on this site is for reference purposes and is not intended to substitute for advice given by a physician, pharmacist, or other licensed health-care professional. You should not use this information as self-diagnosis or for treating a health problem or disease. Contact your health-care provider immediately if you suspect that you have a medical problem. 鶹.ca assumes no liability for inaccuracies or misstatements about products.