BioStacks
Best for
Ingredients (5)
Folate
100%Dose
667 mcg DFE
Target
400–800 mcg
Form
Premium
Vitamin B12
100%Dose
1000 mcg
Target
250–5000 mcg
Form
Premium
Vitamin B6
20%Dose
5 mg
Target
25–100 mg
Form
Premium
Biotin
30%Dose
300 mcg
Target
1000–5000 mcg
Form
—
Folic Acid
100%Dose
400 mcg
Target
400–800 mcg
Form
Budget
Other Ingredients (7)
MannitolSweetener
A FODMAP sugar alcohol that can cause GI distress (bloating, gas, diarrhea) at higher doses. Supplement amounts are typically small, but individuals with IBS or sugar alcohol sensitivity may react even at low doses.
Natural FlavorsFlavor
Broad regulatory category of flavor constituents derived from natural sources. Composition is proprietary and not disclosed — 'Natural Flavors' can include several hundred different compounds depending on the target flavor profile, including hexane-extracted constituents and proprietary carrier solvents. 'Natural' is a regulatory definition (21 CFR §101.22), not a safety guarantee.
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Stevia ExtractSweetener
Zero-calorie natural sweetener extracted from the leaves of Stevia rebaudiana
Citric AcidAcidulant
Natural acid derived from citrus fruits
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Monk Fruit ExtractSweetener
Zero-calorie natural sweetener derived from the monk fruit (Siraitia grosvenorii)
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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.