Vitamins & Supplements

The Best Vitamin B2 (Riboflavin) Supplements

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Our picks are based on Amazon bestseller rankings, Amazon customer ratings, and product availability. We update our recommendations regularly to ensure accuracy.

Riboflavin, also known as Vitamin B2, plays a crucial role in energy production, cell function, and metabolism. Ensuring you get enough of this essential nutrient is vital for overall well-being. Choosing the right supplement can help you meet your daily needs effectively and support your health goals.

No. 1
Nutricost Vitamin B2 (Riboflavin) 400mg, 120 Capsules, Gluten Free
  • 400mg of Premium Vitamin B2 (Riboflavin) Per Capsule
  • 120 Capsules of Vitamin B2 Per Bottle
  • 120 Servings Per Bottle, 1 Capsule is 1 Serving
  • GMO-Free, Gluten Free, 3rd Party Tested
SaleNo. 2
NOW Supplements, Vitamin B-2 (Riboflavin) 100 mg, 100 Veg Caps
  • 100 mg RIBOFLAVIN: Vitamin B-2, also known as riboflavin, is a member of the B-vitamin family
  • ENERGY PRODUCTION*: Riboflavin is an important enzyme cofactor necessary for energy production from carbohydrate, fat, and protein.* It is also needed for the regeneration of glutathione, which supports the body's natural defense mechanisms and...
  • CERTIFICATIONS/CLASSIFICATIONS: Non-GMO, Soy Free, Made without Gluten, Dairy Free, Egg Free
  • GMP Quality Assured: A-rated, third-party certification means that every aspect of the NOW manufacturing process has been examined. Our in-house laboratories are ISO/IEC accredited for laboratory testing including for stability, potency and product...
No. 3
ForestLeaf Vitamin B2 Riboflavin 400mg, 90 Vegetarian Capsules
  • High Potency Vitamin B2 Riboflavin 400mg Supplement – Each capsule delivers 400mg of pure riboflavin vitamin b2, a powerful B 2 nutrient that helps convert food into energy, support metabolic activity, and promote daily cellular function. A reliable b...
  • Supports Energy Metabolism and Red Blood Cell Production – Vitamin b2 riboflavin plays a key role in helping your body maintain energy, supporting red blood cell formation, and transporting oxygen efficiently. This b2 vitamin 400mg supports sustained...
  • Promotes Healthy Skin, Vision, and Nervous System Balance – Riboflavin 400mg supports the maintenance of healthy skin, clear vision, and proper nerve function. Our b2 vitamin supplement may also benefit overall head comfort, making it an excellent...
  • Clean Label and Optimized Absorption – This b 2 vitamin supplement 400 mg is non-GMO, gluten-free, dairy-free, soy-free, and free from artificial additives. ForestLeaf’s vitamin b2 (riboflavin) supplements are vegetarian-friendly and designed for...
No. 4
Nature's Bounty Vitamin B-2 100mg, 100 Tablets
  • SUPPORTS ENERGY METABOLISM (1) Nature’s Bounty Vitamin B-2 (Riboflavin) aids in the metabolism of carbohydrates, proteins and fats to support energy metabolism (1)
  • SUPPORTS A HEALTHY NERVOUS SYSTEM (1) As part of the Vitamin B family, B-2 helps maintain a healthy nervous system (1)
  • EASY TO SWALLOW Our Vitamin B-2 tablets are coated for easy swallowing, ensuring you get your daily dose of this essential B vitamin without hassle
  • QUALITY AND SAFETY Nature’s Bounty is committed to quality and safety, offering a vegetarian-friendly, non-GMO, gluten- and sugar-free vitamin B supplement with no artificial colors or flavors
SaleNo. 5
Nutricost Vitamin B2 (Riboflavin) 100mg, 120 Capsules, Gluten Free
  • 100mg of Vitamin B2 In Each Capsule
  • 120 Capsules Per Bottle
  • High Quality Riboflavin
  • Made in a GMP Compliant, FDA Registered Facility
No. 6
THORNE Riboflavin 5'-Phosphate, Vitamin B2 (R5P) Supplement, 60 Capsules
  • Active B2: The active form of vitamin B2 more readily used by the body*
  • B Vitamin Formation: Important for the formation of other B vitamins, including niacin and active B6
  • Methylation: Provides support for healthy methylation*
  • Free From: Every Thorne product is made with the purest possible ingredients - without gluten or other major allergens (eggs, tree nuts, peanuts) This product also contains no soy, dairy, shellfish, or fish
No. 7
Carlyle Vitamin B-2 400mg | 180 Count | B2 Riboflavin
  • VITAMIN B2: Riboflavin is one of many B-Complex vitamins present in dairy and green vegetables
  • COMPLEX FORMULA: Delivers 400 mg of Vitamin B-2 in each serving for maximum support
  • ROOTED IN WELLNESS: Carlyle provides premium, honest supplements in your pursuit to healthy living
  • CARLYLE MANUFACTURERS: Laboratory Tested, Trusted Ingredients, Superior Quality, 100% Guaranteed!
No. 8
Healthfare Vitamin B2 Riboflavin 400mg | 180 Vegan Capsules | High Potency | Non-GMO | Gluten-Free | Made in...
  • High Potency 400mg Formula - Delivers 400mg of pure Vitamin B2 (Riboflavin) per capsule, offering a concentrated daily dose.
  • Supports Energy Metabolism - Riboflavin plays a key role in energy utilization and balanced nutrient metabolism.
  • Clean, Vegan Formula - Non-GMO, gluten-free, and free from artificial additives or fillers.
  • Daily Wellness Routine -Each bottle provides 180 vegetable capsules, designed for consistent nutrient support.
No. 9
kindnature Vitamin B2 Gummies - Riboflavin 400mg Supplement for Kids & Adults - Soy & Gluten-Free, Vegan...
  • Perfect Dosage of Riboflavin – One dose of our chewable vitamin B2 gummies supplies 400 mg of vitamin B2 (Riboflavin) to help your head feel lighter and clearer when you've been experiencing tension or discomfort*
  • World’s First Gummy B2 Vitamins – We are the first to introduce vitamin B2 Riboflavin in the form of tasty, chewable gummies. Our Riboflavin gummies are easy-to-take and are perfect for people who struggle taking tablets, including kids
  • Natural Lemon Flavor – Enjoy the refreshing citrusy taste of our naturally flavored B2 vitamin gummies and forget about your old, bad-tasting, and bad-smelling Riboflavin pills
  • Formulated for the Health-Minded – Our vitamin B2 gummies are designed to meet a variety of dietary needs & preferences. They are vegan, soy-free, gluten-free, & low in calories, offering a mindful choice for your daily supplement routine
No. 10
DEAL SUPPLEMENT Vitamin B2 400mg (Riboflavin) | with Magnesium Glycinate 400mg, 240 Capsules – 2 in...
  • Special Features – Extra strength vitamin B2 riboflavin capsule supplement. 2-in-1 enhanced formula with magnesium glycinate. Essential vitamin and mineral complex. High bioavailable top grade forms.
  • Benefits & Use – Taking vitamin B2 with magnesium glycinate supports a wide range of benefits around the body. Includes promoting healthy cells, food breakdown, nervous system, energy levels, and heart health.
  • Dosage & Servings – Enjoy 240 capsules per bottle that only take 2 capsules per serving. A 120-day supply that contains 400mg vitamin B2 plus 400mg magnesium glycinate.
  • Purpose – Each serving offers dual action benefits that are designed to promote overall daily balance. Vitamin B2 and magnesium have unique abilities but come together to form a synergistic bond.

Last update on 2026-09-25 / Affiliate links / Images from Amazon Product Advertising API

How to Choose the Best Vitamin B2 (Riboflavin) Supplements

Forms of Riboflavin

Riboflavin supplements are primarily available in two forms: riboflavin itself and riboflavin-5'-phosphate (RBP). RBP is the active form of the vitamin, meaning it's readily usable by the body. While both are effective, some individuals may prefer RBP for potentially faster absorption.

Dosage and Potency

The recommended daily allowance (RDA) for Vitamin B2 varies by age and sex. Supplements come in a wide range of potencies, from 25mg to over 100mg. It's important to consider your individual dietary intake and consult with a healthcare professional to determine the appropriate dosage for your needs. Avoid megadoses unless specifically recommended by a doctor.

Additional Ingredients and Purity

Check the ingredient list for any unnecessary fillers, artificial colors, or allergens if you have sensitivities. Look for supplements that are third-party tested for purity and potency. Certifications from organizations like USP or NSF International can provide added assurance of product quality and safety.

Frequently Asked Questions

What is the main function of Vitamin B2?
Vitamin B2, or riboflavin, is essential for energy production within your cells. It helps convert the food you eat into usable energy and also plays a vital role in cell growth, function, and metabolism.
Who might benefit from a riboflavin supplement?
Individuals with dietary restrictions, certain medical conditions, or those who don't consume enough B2-rich foods may benefit. Pregnant or breastfeeding women, older adults, and athletes might also have increased needs.
Can I take too much Vitamin B2?
Riboflavin is water-soluble, meaning excess amounts are typically excreted in urine. While toxicity is rare, extremely high doses might cause side effects. It's always best to stick to recommended dosages or consult a healthcare provider.
How should I store my riboflavin supplement?
Store your supplement in a cool, dry place away from direct sunlight. Keep the container tightly closed to protect it from moisture and air. Always follow the specific storage instructions provided by the manufacturer on the product label.

How we compare Vitamins & Supplements

1 Specifications: we compare the key features and specifications listed by the manufacturer and on Amazon.
2 Customer ratings: we take into account the average Amazon rating and the number of reviews.
3 Price: we check the current price and highlight notable deals.
4 Updates: comparisons are refreshed regularly as prices and availability change.

Our comparisons are reviewed and updated regularly to reflect the latest products and prices.

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