Thorne Vitamin K2 Concentrated Liquid Supplement For Bone And Heart Health One Fluid Ounce

4.9★★★★★★★★★★8 reviews

• 5 ★7
• 4 ★1
• 3 ★0
• 2 ★0
• 1 ★0

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★ 4.9

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• AAlan20 Mar 2025
  5 ★

  Good Vit. K2-MK4 - Fix for slow drip

  Like many reviewers, I found that using this daily reduced any tartar buildup on the back of my lower front teeth. My main reason for taking it though, was to help with Calcium transport out of my arteries and into my bones. I'm on my second bottle, and I can't tell if it's working in that regard, but the way it reduces the calcium buildup on my teeth is encouraging. There is conflicting information whether Mk-4 or Mk-7 is better, and this is the MK-4 version. My research indicates Mk4 is the better form, but do your own research and draw your own conclusions. The price is high, but keep in mind that this is high dose formula, and the price per mg is pretty reasonable. Most of the published research uses 45 mg/day, and I'm taking 30 - 40 mg/day. A lot of other Vit. K products report their dosage in mcg (1 mg = 1000mcg). Each drop is 1mg, and there are 1200 drops per bottle according to the label. As others have noted, it drips out pretty slow - not a big deal but who wants to waste a minute waiting when it can be done in a few seconds? The solution is to pry off the plastic drip dispenser and enlarge the hole as indicated in the photo; try a pushpin or small nail. I can get my 20 drops in about 5 seconds now.

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• AAarav G.5 Jun 2026
  5 ★

  Wonderful Product!

  I can't say enough good things about Thorne's Liquid K2. It is the MK-4 type of K2, which is the MOST DIFFICULT to find, mainly because it's the most expensive to make (which is why you find ALL the manufacturers seriously "PUSHING" MK-7, which is easier and cheaper to produce), but MK-7 converts to K1 and K2, which is very, very BAAAAAD for someone on blood thinners (anti-coagulants)!!!!! MK-4 does not convert to K1, so it is MUCH safer.If you are looking at this product, then you've either done your research on K2's (specifically from MK-4) beneficial impact on bone and cardiovascular health, or the American Diet's common deficiency in K2, or someone else has told you about it, so I'm not going to go into everything it has helped us with, but I will say it has made a big difference in our lives, and it's great to be able to find it in liquid form which makes it easy to take! I'm so happy to have found a source for it.

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• JJagjit S.28 May 2026
  5 ★

  Cleaned the plaque off my teeth

  I've stopped going to the dentist for teeth cleaning altogether. Adding this vitamin K2 cleaned the calcified krud off the back of my lower front teeth in 2 days! Truly amazing! Now my teeth are smooth and clean all the time. I just brush my teeth once a day -- and often I forget to do even that. I'm saving good money without the dentist 2x year.I learned about it from Richard Nikolay at Free the Animal website. He wrote: "Well, the K2 is the only one I definitely "feel." . . . Within a few days, all plaque deposits on my teeth dissolved and have not returned. This has been a big issue, as I had gum disease and two surgeries about seven years ago. Since getting off grains (probably the gluten) my gum disease has reversed completely according to the dentist. And now, my teeth are virtually always smooth. I rarely feel the need to brush them."So, I had to try it. And it worked.The vitamin K2 is a hard to get vitamin, even if you eat the best pastured eggs, butter and organ meats. It's the 'X-Factor' that Dr. Weston A. Price discovered. It puts the minerals where they are supposed to go, instead of calcifying your arteries and joints and tartar on your teeth.Be sure to get the MK-4 version of vitamin K2. The MK-7 is the plant derived form. In answer to one critic, the likely reason MK-4 doesn't hang around in the blood very long is because the body uses it up immediately. MK-4 is the form our body uses most readily. If you have concerns about this, google these two articles: Chris Masterjohn's "On the Trail of the Elusive X-Factor", and then look for Stephen Guyenet's blog post "Vitamin K2."And even though this bottle costs alot up front, you only need several drops a day -- so the bottle will last you all year.NOTE: Read all of Richard Nikolay's blogs on this. Apparently, for this to work, you need good quality Fermented Cod Liver Oil, only made by Green Pastures. I have been on that kind of cod liver oil for years. Maybe that's why I had such a dramatic effect.Bottomline: if we get all the nutrients we really need, our body should be clean and smell good -- like all primitive people were.I also stopped wheat completely (read Wheat Belly by William Davis) and bye-bye went bad breath and body odor. I only take a shower every 2 or 3 days. It is a great freedom.

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• MMuthukumar L.28 May 2026
  5 ★

  Improved moods in my autistic daughter with a possible positive dental effect

  I give my autistic daughter 3 drops a day. I have no idea why but it improves her mood. Originally I bought the product because others who have reviewed it said that dental plaque was cut down after using it. I don't see plaque dissolving but I believe that it is likely that now after about 4 months of usage it may be a contributing factor to preventing further plaque build up on my daughter's teeth and less swollen gums. I will continue to use this because of the dental situation but even more so because of her improved moods. Initially when I gave her 15 drops as directed she did well but after about 2 weeks she started getting irritable so I stopped and worked our way back up to 3 a day. This seems to work for her. I put it inside her breakfast foods and I take a drop a day myself. At times I take vitamin D3 so K2 is essential. By the way, my daughter had been taking 1 or 2 of a different brand's mk-7 at about 90mcg daily with no effect. I wish there were more research out there about K2. I have tried to research scholarly health articles online and there is definitely an effect that mk-4 has that is different from mk-7. Maybe taking both is good but we won't go without this one.Update: I had the dentist's clean the plaque off of my daughter's teeth 6 months ago and there has been no return. When I made my son in charge of preparing my daughter's breakfast he started forgetting to put the vitamin k2 drops in (now only 2/day). For about a month her behavior deteriorated. I once again reminded him and sure enough her behavior improved again after resuming the k2 drops. She also takes magnesium and riboflavin

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