B-100
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, Ascorbyl Palmitate, Silicon Dioxide
Recommended Use
Suggested Usage: Take 1 capsule daily with a meal.
Warnings
Caution: For adults only. Consult physician if pregnant/nursing, taking medication, or have a medical condition. Keep out of reach of children. Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
Frequently Asked Questions
What is NOW Foods B-100's Formulate score?
NOW Foods B-100 scores 78 out of 100 (grade B+) 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 B-100 worth it?
NOW Foods B-100 scores 78/100 (grade B+). That's an above-average result — most of its doses and ingredient forms are well-chosen, with only minor gaps in dosing, transparency, or 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 B-100?
Each serving contains Thiamine (100 mg), Riboflavin (100 mg), Niacin (100 mg), Folate (680 mcg DFE), and more. Serving size: 1 Veg Capsule(s). 100 servings per container.
How do I take b-100?
Suggested Usage: Take 1 capsule daily with a meal.
Who makes B-100?
B-100 is made by NOW Foods. See Formulate's full grade and product lineup for NOW Foods on its brand page.
Is NOW Foods B-100 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.