BioStacks
Best for
Ingredients (4)
K2 (MK-7)
100%Dose
90 mcg
Target
90–200 mcg
Form
Premium
K2 (MK-4)
100%Dose
5000 mcg
Target
90–200 mcg
Form
Standard
Vitamin K
100%Dose
6090 mcg
Target
90–200 mcg
Form
Not listed
Vitamin K1
100%Dose
1000 mcg
Target
90–200 mcg
Form
Not listed
Other Ingredients (4)
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
HypromelloseCapsule
Plant-derived capsule material from cellulose
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Mixed TocopherolsAntioxidant
Natural vitamin E used as preservative
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.