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iHerb Customer Reviews



Savings of: $12.87 (46% off)

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  • Source Naturals Vitamin K2 is not certified organic; however, the material is non-GMO. - Source Naturals

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    Great product!

    Posted by Reviewer2684236 on May 04, 2010

    I started taking vitamin K2 when I found out that I had full blown osteoporosis. After taking vitamin K2, fish oil, and vitamin D, my next bone density scan showed marked improvement.

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    Building Up Bones

    Posted by cot477 on Oct 13, 2010

    I take K2 nightly with calcium, magnesium and D3. This combination helps with aging bones AND it is mighty relaxing at bedtime and helps with sleep. ALL good! Also, I take about 20 supplements and K2 is the ONLY tablet I take... I prefer capsules for more complete absorption. This tablet is a bit big and dry and harder to swallow, but it's the only pure K2 product I could find, so I'll continue to choke it down none the less.

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    Vitamin K2

    Posted by Reviewer1526140 on Dec 14, 2009

    There are at least 2 types of Vitamin K2. This brand has menaquinone 7, which is considered the best form.

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    JPF in Wyoming

    Posted by Reviewer2978099 on Oct 13, 2007

    I have used this product for over a year. So far it has helped me stay off prescription drugs for osteopoenia.

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    Source Naturals, Vitamin K2, 100 mcg, 60 tablets

    Posted by Reviewer2305890 on Jul 05, 2010

    Think this may be a great product for my bones are holding together so far and I am fair, petite, in my 60's, etc.

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    great vitamin

    Posted by Reviewer1983997 on Apr 17, 2011

    This is the ONLY vitamin K2 that does not cancle out with K added and that is what we need!

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    Vitamin K2

    Posted by Vizion on Jul 05, 2016

    I like Source Naturals, I have high hopes for the purity and effectiveness of this product. However, please, I just want pure vitamin K2 with some Natto nutrients on the side. Since I can't find any Source Naturals product with pure vitamin K2, I will change to Thorne, after this product.

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    Vitamin K2 for bones and heart

    Posted by Reviewer2470273 on Dec 05, 2009

    Good price for 100mcg---with D3

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    Posted by francesjoan on Nov 21, 2010

    You ran out of Life Extension vitamin K so I tried this one. It's good. But when I use this up I'll go back to the Life Extension brand. I like the mixture of three types of vitamin K in it.

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    Great for your bones!

    Posted by Reviewer3060686 on Feb 05, 2011

    Excellent quality. I may repurchase this particular brand, or try others at iHerb. K2 is a necessity if you have concerns about joint flexibility- I highly recommend it!

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    Items 1-10 of 24 total

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