Niacin
Scored by the Formulate Research Team · Last reviewed July 2026
Score Breakdown
Three factors carry this score; three more are checked separately and can only take points away. Hover or tap to see what drove each one.
Ingredients per Serving
Certifications & Testing
Other Ingredients
Hypromellose, Microcrystalline Cellulose, Stearic Acid, Vegetarian Coating, Silicon Dioxide
Recommended Use
Suggested Usage: Take 1 tablet daily with a meal. This high potency tablet should be taken under doctor's supervision.
Warnings
This high potency tablet should be taken under doctor’s supervision. Niacin supplements may sometimes temporarily cause flushing and/or itching, but this sustained release tablet should minimize those symptoms. To further limit these uncomfortable but not dangerous symptoms, take daily and avoid missing doses. Caution: For adults only. Physician supervision is recommended while taking this product
Frequently Asked Questions
What is NOW Foods Niacin's Formulate score?
NOW Foods Niacin scores 92 out of 100 (grade A) on Formulate's ingredient-level rubric: clinical evidence, dose accuracy and bioavailability carry the score, while manufacturing, transparency and safety are checked separately and can only deduct.
Is NOW Foods Niacin worth it?
NOW Foods Niacin scores 92/100 (grade A). That puts it in Formulate's top tier: its ingredient doses, forms, and label transparency hold up against the clinical evidence, and it carries credible third-party testing. Formulate grades every product with the same automated rubric, so the score reflects the formula — not marketing or sponsorships.
What's in NOW Foods Niacin?
Each serving contains Niacin (500 mg). Serving size: 1 Tablet(s). 250 servings per container.
How do I take niacin?
Suggested Usage: Take 1 tablet daily with a meal. This high potency tablet should be taken under doctor's supervision.
Who makes Niacin?
Niacin is made by NOW Foods. See Formulate's full grade and product lineup for NOW Foods on its brand page.
Is NOW Foods Niacin third-party tested?
NOW Foods lists the following certifications and testing for this product: Vegan, Vegetarian, Gluten-Free, Dairy-Free.
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Disclosure. Formulate may earn a commission from purchases made through links on this page. Commissions never influence scores — every product is graded by the same automated rubric. This page is for educational purposes only and does not replace advice from a qualified healthcare provider.