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Klaire Labs SFI Health Ultra K2 Menaquinone – 4 – Vitamin K2 Supplement with 15mg of Vitamin K2 MK4 per Capsule – Support Bone & Cardiovascular Health – Hypoallergenic & Vegan Vitamin K (90 Capsules)

Original price was: $359.93.Current price is: $357.93.
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20 - 27 Jan, 2026
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About this item

  • Premium Form of Vitamin K – Ultra K2 provides 15 mg of vitamin K2 in the MK-4 form. Vitamin K2 MK4 can help support healthy bones and connective tissue. By promoting normal cartilage health, it can also help support joint mobility and flexibility.*
  • Promote Bone Health & Healthy Calcium Use – The K2 vitamin plays an important role when it comes to calcium. It can help activate the calcium-binding properties of proteins, which enables calcium to travel to, and benefit, different tissues around the body.*
  • Support Cardiovascular Health – The K2 form of Vitamin K has been clinically studied for its role in supporting healthy bone metabolism and cardiovascular health.*
  • Non-GMO and Vegan – This hypoallergenic Vitamin K2 supplement is free of the following common allergens: milk/casein, eggs, fish, shellfish, tree nuts, peanuts, wheat, gluten, soybeans, corn, and yeast. It contains no artificial colors, flavors, or preservatives.
  • Klaire Labs is Now SFI Health – Klaire Labs has been part of the SFI Health family for many years leading the way in efficacy, safety, quality, and trusted by healthcare practitioners. While we might be changing the way things look, rest assured that our formulations and Vit K2 supplement lines remain the same.

    Product Description

    Many people who have searched for a vitamin K supplement probably don’t realize that there is a difference between Vitamins K, K2 and a full Vitamin K complex. So if you are one of these prospective shoppers, keep in mind that a K2 Vitamin supplement may be able to help you support healthy bone metabolism and your body’s ability to use calcium efficiently. This is because K2 vitamins can help activate the calcium-binding properties of proteins, which then helps calcium travel to different tissues around the body. In this way, the k-2 vitamin can also help support healthy joints and tissues. So if you are curious to see whether vitamin k 2 can work within your curreent supplement routine, consider asking your doctor today if this Ultra K 2 Vitamin supplement could be a helpful option for you. If you are already looking for a vitamin complex or multivitamin with k2, you may find that this k vitamin supplement gives you an ultra efficient way to get the vitamins K2 you want to add to your existing diet.*

    Product details

    • Is Discontinued By Manufacturer ‏ : ‎ No
    • Package Dimensions ‏ : ‎ 3.27 x 1.81 x 1.73 inches; 1.13 ounces
    • Date First Available ‏ : ‎ July 23, 2018

      Safety and product resources

      Safe use

      As the Food and Drug Administration (FDA) advises, dietary supplements can support your overall health but may also have powerful effects on the body. It’s important to read labels carefully, exercise caution, and consult your healthcare professional before taking any supplement. Side effects are more likely if supplements are taken in high doses, as substitutes for prescribed medications, or in combination with multiple supplements. If you experience severe side effects, discontinue use immediately and seek medical attention.
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