Jamieson Vitamin B2 Riboflavin 100mg Caplets supplement bottle
Jamieson

Vitamin B2 Riboflavin 100mg Caplets Review

What We Researched
· 7 inactive ingredients decoded · 5 brand certifications checked · Last updated: Aug 2026
100
Product Score Excellent
100
Brand Score Excellent

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

Product Analysis

Transparency Fair

Supplement Facts

No supplement facts data available.

Bioavailability N/A

Absorption Rating

No ingredient forms matched our reference database.

Other Ingredients Excellent

Fillers & Additives

  • Cellulose
  • Dicalcium Phosphate
  • Modified Cellulose Gum
  • Vegetable Stearic Acid
  • Hydroxypropyl Cellulose
  • Water-soluble cellulose
  • Vegetable Magnesium Stearate
Efficacy N/A

Dosage Analysis

Dosage data not available for assessment.

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Cellulose Safe

Provides bulk and structure in tablets and capsules.

Dicalcium Phosphate Safe

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

Modified Cellulose Gum Generally_safe

It is used to improve the texture and stability of products.

Vegetable Stearic Acid Generally_safe

It is used to prevent ingredients from sticking to manufacturing equipment.

Hydroxypropyl Cellulose Safe

Binds tablet ingredients and can form tablet coatings.

Water-soluble cellulose Unknown
Vegetable Magnesium Stearate Safe

Prevents ingredients from sticking to equipment. Derived from vegetable sources.

Brand Trust Report
Jamieson

Founded 1922 · Toronto, Ontario, Canada · 384 products · jamiesonvitamins.com

Certifications

5 certifications
Consumerlab Verified Source
Health Canada Licensed Verified Source
Nsf Gmp Verified Source
Fda Gmp Inspections Verified Source
Informed Sport Verified Source

Transparency

4 claims
Third Party Testing Claim — Verified Source
In House Testing — Verified Source
Testing Lab Disclosure — Claimed Source

Violation History

8 incidents
Prop 65 Lead2019-02-14Source
Prop 65 Lead2019-02-14Source
Lawsuit Products labeled as containing glucosamine sulfate did not actually contain any.2019Source
Lawsuit Manufacturing and selling products labeled as containing glucosamine sulfate which allegedly did not contain any glucosamine sulfate.2019Source
Recall Jamieson Vitamin B2 100 mg (NPN 00309702, Lots 1278153, 1387669, 1390088)2009-03-02Source
Recall Vitamin B22009-03-02Source
Recall Jamieson's MegaCal 650 mg with Vitamin D, 100 count (Lot 302273)2002-02-11Source
Recall MegaCal 650 mg with Vitamin D2002-02-11Source
Related Supplements
Frequently Asked Questions
Is Jamieson Vitamin B2 Riboflavin 100mg Caplets a good supplement?

Jamieson Vitamin B2 Riboflavin 100mg Caplets received a product quality score of 100/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. Of the 7 inactive ingredients, 4 are rated safe and 0 are flagged for review. The manufacturer, Jamieson, holds a brand trust score of 100/100 with 5 verified certifications including Consumerlab, Health Canada Licensed, Nsf Gmp, Fda Gmp Inspections.

Is Jamieson Vitamin B2 Riboflavin 100mg Caplets safe to take?

Jamieson Vitamin B2 Riboflavin 100mg Caplets has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Jamieson a trustworthy supplement brand?

Jamieson receives a brand trust score of 100/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1922 and headquartered in Toronto, Ontario, Canada, the company offers 384 products in their lineup. They hold 5 verified certifications including Consumerlab, Health Canada Licensed, Nsf Gmp, Fda Gmp Inspections. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Jamieson has 8 historical regulatory incidents 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.