Bulk Supplements Vitamin B2 Riboflavin Capsules supplement bottle
Bulk Supplements

Vitamin B2 Riboflavin Capsules Review

What We Researched
1 active ingredient analyzed · 1 inactive ingredient decoded · 4 brand certifications checked · Page generated: Sep 2026
100
Product Score Excellent
83
Brand Score Good

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Riboflavin 400 mg —
Bioavailability Excellent

Absorption Rating

  • Riboflavin Good
Other Ingredients Excellent

Fillers & Additives

  • Bovine Gelatin
Efficacy Excellent

Dosage Analysis

  • Riboflavin 400 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Riboflavin 400 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Bovine Gelatin Safe

Forms capsule shells. Sourced from bovine (cow) collagen.

Brand Trust Report

Certifications

4 certifications
NSF Certified for Sport Supporting evidence unavailable
NSF Contents Certified Supporting evidence unavailable
NSF Certified Supporting evidence unavailable
USDA Organic Supporting evidence unavailable

Transparency

2 claims
Third Party Testing Claim — True Brand claim; evidence unavailable
Testing Lab Disclosure — True Brand claim; evidence unavailable
Related Supplements
Frequently Asked Questions
Is Bulk Supplements Vitamin B2 Riboflavin Capsules a good supplement?

Bulk Supplements Vitamin B2 Riboflavin Capsules received a product quality score of 100/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 1 active ingredients with 180 servings per container. All 1 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Bulk Supplements, holds a brand trust score of 83/100.

What are the ingredients in Bulk Supplements Vitamin B2 Riboflavin Capsules?

Bulk Supplements Vitamin B2 Riboflavin Capsules contains 1 active ingredients: Riboflavin (400 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Bulk Supplements Vitamin B2 Riboflavin Capsules safe to take?

GoodSupp reviewed the inactive-ingredient data available for Bulk Supplements Vitamin B2 Riboflavin Capsules. All 1 inactive ingredients — including capsule materials, fillers, and binders — are currently classified as safe in GoodSupp's ingredient reference data. This label analysis cannot determine whether the product is safe for a particular person, and source labels may change. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Bulk Supplements a trustworthy supplement brand?

Bulk Supplements receives a brand trust score of 83/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices.

How much vitamin d3 should i take daily?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

What does vitamin d do?

This is an important question for supplement consumers. The dietary supplement industry is largely self-regulated, which means product quality, ingredient transparency, and safety practices vary significantly between brands and products. The most reliable way to evaluate any supplement is to check for third-party testing certifications, review the full ingredient list and dosages, and research the brand's regulatory track record. GoodSupp's database of over 150,000 analyzed products provides independent quality scores, ingredient safety ratings, and brand trust reports to help you make evidence-based decisions.

How much vitamin d3 per day for a woman?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records — read our methodology. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.