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K2-45, derived from non-GMO soybeans fermented with Bacillus subtilis natto, is the most bioavailable and bioactive form of supplemental vitamin K2 available. Historical use and numerous studies have confirmed safety and efficacy for bone and heart health.*

Supports Bone Health by Promoting Carboxylation of Bone Proteins*
Supports Cardiovascular Health by Affecting Arterial Calcium Deposits*
Supports Healthy Blood Clotting*

Take one capsule with a meal, one to two times daily, or as directed by your healthcare professional.

Serving Size: 1 Capsule

Amount Per Serving
Vitamin K2 … 45 mcg
(as menaquinone-7)

Other Ingredients: Microcrystalline cellulose, capsule (hypromellose and water), stearic acid, magnesium stearate, and silica.

Formulated to Exclude: Wheat, gluten, yeast, soy protein, animal and dairy products, fish, shellfish, peanuts, tree nuts, egg, sesame, ingredients derived from genetically modified organisms (GMOs), artificial colors, artificial sweeteners, and artificial preservatives.

Not for use by children under 12 years of age. Do not take when operating machinery or driving a vehicle.

Consult your healthcare professional before use. Individuals taking blood thinners or other medication should discuss potential interactions with their healthcare professional. Do not use if tamper seal is damaged.

Let customers speak for us

from 2280 reviews

Chiro Dr recommended - I guess it is needed and helps

Chiro Dr recommended - I guess it is needed and helps. I have no health issues and take a lot of PRL supplements as preventative health

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11/25/2025

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My Chiro Dr recommended this and it seems to help. Preventative med.

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Anonymous

11/09/2025

Circulation Pineapple ing

Never stop making this product! Thank you Douglas Labs

I am not kidding when I tell you that I need this product to survive. I take multiple antibiotics for resistant tick borne illnesses for 17 years. My stomach was great, fabulous even, taking Sedona labs Iflora daily. Sedona labs eventually sold to Douglas labs and the product was continued to be made until it was apparently discontinued. I received bad information, was told that Douglas Labs had closed, I tried to find another product and I tried cheaper ones before and they do nothing at all. After four months without Sedona, labs product it came to a point where my stomach was so messed up that I didn’t know how I would move forward. Although I had tried to find an equivalent to Sedona labs Iflora before, I had been unsuccessful. Gratefully I came across an article that talked about the bacterial content of the Iflora and the particular bacteria essential to gut health. Bifidobacterium lactis HN019, the article was impeccably well informed and emphasize that the Bifidobacterium lactic bacterium in the product must have the letters and numbers next to it HN019. I was looking at Douglas labs 40 billion and it has that bacteria. I’ve been taking it for a month and a half of my stomach is back to happy. What I’m thinking happened was that Douglas labs took Iflora and just made their own product from it knowing how effective and important it is. I am forever in debt to Douglas labs for making this product. Again, please please please always make this product exactly the same. It’s so important for so many people. I give it to people, family after and when they are taking antibiotics. I want my loved ones to be well. This product is an absolute necessity in my treatment, as important as the antibiotics themselves.

Terri D. Myers

10/31/2025