BioStacks
Source Naturals

Vitamin K2 Advantage 2,200 mcg

1 Tablet · 30 servings · $0.62/serving

98 / 100Excellent

Score Breakdown

Formulation
98
Safety
100
Final score
98/100

Ingredients (4)

3 scored · 1 not scored

Vitamin K2180 mcg

Optimal dose · Premium form

Vitamin K2200 mcg

Optimal dose

Vitamin K11820 mcg

Within effective range

Calcium64 mg

Trace amount — not scored

Other Ingredients

Fillers, coatings, and additives

5Safe

Magnesium StearateLubricant

Safe

Silicon DioxideAnti-caking

Safe

Calcium CarbonateBuffer

Safe

Microcrystalline CelluloseBinder

Safe

Microcrystalline CelluloseBinder

Safe

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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.