NOW Supplements Biotin 5 000 mcg Amino Acid Metabolism* Energy Production* 120 Veg Capsules
Analysis updated May 2026 · How Scout scores
At a glance
Summary
This supplement contains basic ingredients like rice flour and hypromellose, which are generally considered safe, but it also includes additives such as stearic acid and silicon dioxide. While these additives are common in supplements and not inherently harmful, they contribute to a higher level of processing. The formulation lacks any harmful substances, but the presence of multiple additives slightly impacts its overall quality.
Key ingredients 4
Rice FlourNeutral
Rice flour is commonly used as a filler in supplements and is generally considered neutral. It is a gluten-free carbohydrate source but does not provide significant nutritional benefits in small amounts. Its use in supplements is primarily for bulk and does not impact the active ingredients.
See more about Rice Flour →HypromelloseNeutral
Hypromellose is a cellulose derivative used as a capsule material, providing a vegetarian alternative to gelatin. It is considered neutral as it does not interact with the active ingredients or affect their absorption. Its primary role is to encapsulate the supplement contents safely.
See more about Hypromellose →Stearic AcidNeutral
Stearic acid is a fatty acid used as a lubricant in supplement manufacturing, ensuring smooth processing. It is derived from vegetable sources and is generally considered neutral in small amounts. It does not significantly impact health when consumed in typical supplement quantities.
See more about Stearic Acid →Silicon DioxideNeutral
Silicon dioxide is used as an anti-caking agent in supplements to prevent clumping and ensure even distribution of ingredients. It is considered neutral as it is inert and does not affect the active ingredients. Its role is purely functional in maintaining product quality.
See more about Silicon Dioxide →Processing
Ultra-Processed Foods
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