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iHerb Customer Reviews
1-9 of 9 total
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Too large dose

Posted by Reviewer2450542 on Apr 02, 2013 | Verified Purchase

I had cardiac arrhythmia after taking this product, every time. 500mcg is too large dose.

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Not sure if the 5 stars are deserved...

Posted by Reviewer3305783 on Jun 23, 2012 | Verified Purchase

...but I gave them anyway, for the following reason: The instructions for the Now Foods Calcium and Magnesium advise also taking this, presumably for the following reason: Vit K makes the calcium go to your bones and not your arteries. I've gotten fabulous results from the "reverse" magnesium and calcium, so I gave both it and the K2 five stars.

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I will continue using this product

Posted by johanna-margret on Jan 16, 2014 | Verified Purchase

I like this product. Since I take 10,000 IU of vitamin D every day, my doc wanted me to take this along with it!

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Very happy with these

Posted by Reviewer2350202 on Sep 27, 2011 | Verified Purchase

Not as fast to dissolve as others, but not bad. Pleasant taste. Teeth seem stronger since taking K vitamins.

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like it

Posted by Reviewer2255839 on May 14, 2012 | Verified Purchase

I like the sublingual tablet, easy to take

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suck it and see.

Posted by iHerb Customer on Jun 08, 2017 | Verified Purchase

prompt delivery, No adverse effects yet. will report any change with long term use.

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Easy to take

Posted by 5235842935832095521 on Mar 09, 2017 | Verified Purchase

Desolves quickly with no fuss. Does have a larger daily dose than the recommended amount by about two and a half times. I've had no adverse side effects from it, but I would recommend checking with your doctor first if you have other prescriptions you have to take. Taste isn't unpleasant I will reorder when I run out.

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Review of Sperior Source Vit K2 500 microgram subligual tablets

Posted by 5046277903365189503 on Dec 30, 2016 | Verified Purchase

The tablets appear to have maintained a consistent taste and solubility over the last couple of years and to be supplying my K2 requirements. I seem to have developed a deficiency of vitamin K over the years, with one of the theoretical possibilities being malabsorption from the gut. The sublingual route of administration appears to be working. This is a purely subjective opinion because I have no measurable data.

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Posted by 5666681641301185897 on Jun 24, 2013 | Verified Purchase

this is an important sup to take. great way to take it.

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1-9 of 9 total