BioStacks
21st Century

A 3000 mcg (10,000 IU)

1 Softgel · 110 servings · $0.03/serving

43 / 100Average

Best for

Score Breakdown

Formulation
45
Safety
95
Final score
43/100

Ingredients (1)

Vitamin A

100%

Dose

3000 mcg RAE

Target

700–1500 mcg

Form

Not listed

Other Ingredients (4)

GelatinCapsule

Protein derived from collagen, used in traditional capsule shells

GlycerinHumectant

Sweet-tasting liquid used in soft capsules and liquids

Purified WaterSolvent

Water meeting USP specifications used as solvent/vehicle in gummies and liquids

Vegetable OilCarrier

Edible oils used as carriers in softgels and as processing aids

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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.