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iHerb Customer Reviews



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K2 MK4 (but not stated on the bottle)... useless dose!

Posted by Reviewer2534376 on Jun 09, 2014

The Mk7 (natural) form has a much longer half life than the MK4 (synthetic) form. Now say this is the MK4 form... but don't say that anywhere on the bottle. NOW do sell a form that is specifically MK7. The studies using 100 ug were done with MK7 (K2-7). The studies using 3 mg were done with Mk4 (K2-4). Thus 100 ug of K2 Mk4 is useless! :-(

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K2 or K7

Posted by Reviewer2575503 on Nov 27, 2013

Menaquinone-7 (MK-7) is different from MK-4 !!! Which one types of vitamin K includes the product?

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Posted by Reviewer1294968 on Oct 10, 2009

I ordered on Saturday and received the products on Monday.

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