Best for
Ingredients (2)
Niacin
100%Dose
500 mg
Target
25–500 mg
Form
Budget
Inositol
7%Dose
143 mg
Target
2000–4000 mg
Form
Budget
Other Ingredients (5)
SorbitolSweetener
A FODMAP sugar alcohol that may trigger GI discomfort (bloating, gas) in individuals with IBS or sorbitol malabsorption, even at small amounts found in supplements. Avoided in low-FODMAP diets.
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
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
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.
On the label
1 tablet daily.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$11.94
Cheaper than 69% of 103 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.