Best Vitamin B (Riboflavin) Supplements Under $100 (2026)

We selected riboflavin supplements under $100 by combining a value score that weights dose (400 mg), capsule count, user rating, and label features like gluten-free or non-GMO

This roundup covers Vitamin B2 (riboflavin) supplements priced under $100, focused on potency, ingredient transparency, and value. Selections were ranked by a value score that balances dose (400 mg options), capsule count, user ratings, and label features like non-GMO or gluten-free

Top Picks

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    Vitamin B2 Riboflavin 400mg supplement

    Vitamin B2 Riboflavin 400mg supplement

    ForestLeaf • ★ 4.3/5 • Mid-Range

    High potency vitamin B2 riboflavin 400mg capsule supporting energy metabolism and red blood cell production. Customers note migraine relief and steady energy with gluten-free, easy-to-swallow capsules

    • 400mg riboflavin per capsule
    • supports energy metabolism
    • gluten-free, non-GMO capsules
    Check current price on Amazon →
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Buying Guide

Confirm the active dose

Many products in this list deliver 400 mg of riboflavin per serving—verify the milligram strength to match your intended use or practitioner guidance

Check capsule count and servings

Compare total capsule counts (for example 120-count and multi-pack formats) to judge cost per serving and how long a bottle will last

Look for formulation labels

Prefer labels that note gluten-free, non-GMO, or veggie caps if dietary restrictions or ingredient preferences matter to you

Consider brand transparency

Brands that list third-party testing, lab-tested claims, or clear supplement facts provide better insight into purity and potency

Review user ratings and consistency

Use aggregated ratings (many top options here show ratings around 4.6–4.7★) alongside ingredient details to assess reliability over time