BioStacks
Best for
Ingredients (3)
Vitamin K2
100%Dose
100 mcg
Target
90–200 mcg
Form
Premium
Vitamin K2
100%Dose
1000 mcg
Target
90–200 mcg
Form
Standard
Vitamin K1
100%Dose
1500 mcg
Target
90–200 mcg
Form
Not listed
Other Ingredients
No other ingredients listed
How to Take It
Take it anytime
Fat-soluble — take with a meal containing fat for better absorption. Time of day doesn't matter.
With a meal containing fat
On the label
Take 2 softgels daily.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$24.95
Near the median of 165 vitamin K supplements
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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.