NOW Supplements Vitamin B-2 (Riboflavin) 100 mg Energy Production* 100 Veg Capsules
Analysis updated August 2026 · How Scout scores
At a glance
Summary
This vitamin B-2 supplement contains a simple formulation with minimal additives, which is generally positive for ingredient quality. However, the presence of rice flour and stearic acid as fillers, while common, slightly detracts from the overall purity of the product. The absence of harmful substances like artificial dyes or sweeteners supports a favorable score, but the use of fillers prevents it from reaching the highest tier.
Key ingredients 4
Rice FlourNeutral
Rice flour is commonly used as a filler or binder in supplements. It is a natural ingredient with minimal processing involved. It does not provide significant nutritional benefits in the context of a supplement.
See more about Rice Flour →HypromelloseNeutral
Hypromellose is a plant-derived cellulose used as a capsule material. It is considered safe and is often used in vegetarian capsules. It does not contribute any nutritional value but is a suitable alternative to gelatin.
See more about Hypromellose →Stearic AcidNeutral
Stearic acid is a fatty acid used as a lubricant in supplement manufacturing. It is generally recognized as safe and does not affect the nutritional profile of the supplement. It helps in the manufacturing process by preventing ingredients from sticking to equipment.
See more about Stearic Acid →Silicon DioxideNeutral
Silicon dioxide is used as an anti-caking agent to prevent clumping in supplements. It is a naturally occurring compound and is considered safe for consumption. It does not provide any nutritional benefits but ensures product stability.
See more about Silicon Dioxide →Processing
Processed Foods
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