Puritan's Pride Vitamin B-2 100 mg supplement bottle
Puritan's Pride

Vitamin B-2 100 mg Review

What We Researched
1 active ingredient analyzed · 4 inactive ingredients decoded · 6 brand certifications checked · Last updated: Aug 2026
100
Product Score Excellent
89
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 (as Vitamin B2) 100 mg 7692%
Bioavailability Excellent

Absorption Rating

  • Riboflavin (as Vitamin B2) Good
Other Ingredients Excellent

Fillers & Additives

  • Dicalcium Phosphate
  • Cellulose
  • Silica
  • Magnesium Stearate
Efficacy Excellent

Dosage Analysis

  • Riboflavin (as Vitamin B2) 100 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Riboflavin (as Vitamin B2) 100 mg 7692%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Dicalcium Phosphate Safe

Serves as both a filler and a supplemental source of calcium and phosphorus.

Cellulose Safe

Provides bulk and structure in tablets and capsules.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Brand Trust Report
Puritan's Pride

Founded 1973 · Oakdale, NY, United States · 902 products · puritan.com

Certifications

6 certifications
Nsf Gmp Verified Source
Fda Gmp Inspections Verified Source
Gluten Free Gfco Verified Source
Non Gmo Project Verified Source
Usda Organic Verified Source
Vegan Certified Verified Source

Transparency

4 claims
Third Party Testing Claim — Claimed Source
In House Testing — Verified Source
Contains Proprietary Blend — True

Violation History

1 incident
Lawsuit The lawsuit alleged that the 'buy one get one free' offers were deceptive because the cost of the 'free' product was built into the price of the purchased product.2017Source
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Frequently Asked Questions
Is Puritan's Pride Vitamin B-2 100 mg a good supplement?

Puritan's Pride Vitamin B-2 100 mg 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 100 servings per container. All 4 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Puritan's Pride, holds a brand trust score of 89/100 with 6 verified certifications including Nsf Gmp, Fda Gmp Inspections, Gluten Free Gfco, Non Gmo Project.

What are the ingredients in Puritan's Pride Vitamin B-2 100 mg?

Puritan's Pride Vitamin B-2 100 mg contains 1 active ingredients: Riboflavin (as Vitamin B2) (100 mg). Notable high-dose ingredients include Riboflavin at 7692% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Puritan's Pride Vitamin B-2 100 mg safe to take?

Puritan's Pride Vitamin B-2 100 mg has been analyzed for ingredient safety across all its components. All 4 inactive ingredients — including capsule materials, fillers, and binders — are rated safe based on regulatory data and published safety research. This is a clean formulation with no controversial additives. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Puritan's Pride a trustworthy supplement brand?

Puritan's Pride receives a brand trust score of 89/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1973 and headquartered in Oakdale, NY, United States, the company offers 902 products in their lineup. They hold 6 verified certifications including Nsf Gmp, Fda Gmp Inspections, Gluten Free Gfco, Non Gmo Project. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Puritan's Pride has 1 historical regulatory incident on record, which are factored into the trust score.

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.