BioStacks
Carlson

Vitamin D3 + K2

2 Capsules · 30 servings · $0.54/serving

94 / 100Excellent

Score Breakdown

Formulation
91
Safety
100
Final score
94/100

Ingredients (2)

Vitamin D3

100%

Dose

2000 IU

Target

1000–5000 IU

Form

Premium

Vitamin K2

100%

Dose

90 mcg

Target

90–200 mcg

Form

Premium

Other Ingredients (7)

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

Ascorbyl PalmitateAntioxidant

Fat-soluble form of vitamin C used as preservative

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

GlycerinHumectant

Sweet-tasting liquid used in soft capsules and liquids

HypromelloseCapsule

Plant-derived capsule material from cellulose

Rosemary ExtractPreservative

Natural plant-derived antioxidant used to preserve freshness and prevent oxidation of oils and fats in 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.