BioStacks
Best for
Ingredients (1)
Riboflavin
100%Dose
400 mg
Target
25–100 mg
Form
Budget
Other Ingredients (8)
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
Carnauba WaxCoating
Hard plant wax from the carnauba palm used to glaze gummies and tablets
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
Croscarmellose SodiumDisintegrant
Cross-linked cellulose derivative used as a superdisintegrant
Stearic AcidLubricant
Saturated fatty acid used as tablet lubricant
How to Take It
Best taken in the morning
Many people prefer B-vitamins earlier in the day; take with food to avoid nausea.
With food
On the label
Adults take 1 tablet daily or as recommended by a healthcare professional.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$12.50
Near the median of 61 vitamin B2 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.