BioStacks
Best for
Ingredients (2)
Niacin
100%Dose
400 mg
Target
25–500 mg
Form
Budget
Inositol
5%Dose
100 mg
Target
2000–4000 mg
Form
Budget
Other Ingredients (4)
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
GelatinCapsule
Protein derived from collagen, used in traditional capsule shells
Stearic AcidLubricant
Saturated fatty acid used as tablet lubricant
How to Take It
Take it anytime
Trials dose 2 g twice daily — split it morning and evening rather than taking it all at once.
With or without food
On the label
For adults, take one (1) capsule one to two times daily, preferably with meals.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$17.62
Near the median of 82 vitamin B3 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.