BioStacks
Best for
Ingredients (22)
Vitamin D
100%Dose
1320 IU
Target
1000–5000 IU
Form
Premium
Biotin
100%Dose
5000 mcg
Target
1000–5000 mcg
Form
—
Niacin
100%Dose
25 mg
Target
25–500 mg
Form
Standard
Pantothenic Acid
30%Dose
15 mg
Target
50–500 mg
Form
Premium
Vitamin A
100%Dose
900 mcg RAE
Target
700–1500 mcg
Form
Standard
Other Ingredients (6)
Titanium DioxideColorant
Banned in the EU (2022) over concerns that its ultra-fine particles may damage DNA in gut cells. Still allowed in the US. Used only for white coloring — provides no health benefit.
CarmineColorant
Insect-derived (not vegan/vegetarian) and a recognized cause of IgE-mediated allergic reactions, including documented anaphylaxis. The FDA mandated explicit 'carmine'/'cochineal extract' labeling in 2011 specifically because of these reactions. Not toxic to the general population, but a genuine allergen with no health benefit; plant pigments achieve the same color.
Soy LecithinEmulsifier
Widely used emulsifier derived from soybeans
GelatinCapsule
Protein derived from collagen, used in traditional capsule shells
Vegetable OilCarrier
Edible oils used as carriers in softgels and as processing aids
GlycerinHumectant
Sweet-tasting liquid used in soft capsules and liquids
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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.