Best Riboflavin Supplements (Vitamin B2) – Top 10 Brands for 2018


Jump Ahead to the Top 10 Riboflavin Products

What is Riboflavin?

Also known as vitamin B2, riboflavin is one of eight essential vitamins that your body needs to metabolize protein and fat and to convert carbohydrates into glucose, which your body uses for energy.

Riboflavin is needed for your brain functions and nervous system. It also supports the health of your liver, eyes, skin, and hair. Riboflavin is a water-soluble vitamin and as such is not stored in your body. For this reason, you need to obtain a regular supply from your daily diet.

Dietary sources of vitamin B2 include fortified breakfast cereals, beef liver, oats, plain yogurt, portabella mushrooms, spinach, whole eggs, clams, apples, cheese, and tomatoes.

Riboflavin is also widely available as a dietary supplement, both on its own and in B vitamin complex products. In some cases, supplementing your diet with a good vitamin B2 supplement can be beneficial.

Riboflavin Uses

  • Iron absorption: Iron is an essential mineral for the growth of cells and tissues as well as transporting oxygenated blood from your lungs throughout your body. If you are deficient in iron, you may suffer from anemia. Anemia results in fatigue, weakness, difficulty breathing, leg cramps, and insomnia. Riboflavin can help the body to absorb iron more readily, potentially helping lower the risk of iron deficiency.
  • Red blood cells: Riboflavin supports red blood cell formation and helps the body maintain a healthy ratio of red blood cells.
  • Energy: Riboflavin is needed for the breakdown of proteins into fats, acids, and carbohydrates to provide the body with energy. Vitamin B2 is also necessary to support proper thyroid and adrenal functions. A vitamin B2 deficiency can increase the risk of thyroid disorders.
  • Hair and skin: Riboflavin plays an important role in maintaining healthy collagen levels. Collagen is a protein found in the skin which helps to give it structure and help avoid the appearance of fine lines and wrinkles. A riboflavin deficiency can cause the skin to age quicker.
  • Headaches: Children and adolescents who are deficient in vitamin B2 may experience severe headaches and even migraines. In these cases, adding riboflavin to the diet can improve headaches. In one study, 55 patients who took between 200 and 400 mg of riboflavin daily experienced fewer and less intense headaches than those who were given a placebo.
  • Homocysteine levels: Homocysteine is an amino acid which the body creates during metabolism, which means you can only obtain it through your diet. In high concentrations, it has been linked to an increased risk of strokes and heart attacks. Vitamin B2 helps support healthy homocysteine levels.
  • Eye health: Riboflavin supports eye health by strengthening the lenses of the eye. The Blue Mountains Eye Study assessed 2873 participants taking multivitamins. The results revealed that along with other vitamins, riboflavin may help to reduce the risk of cataracts.

It’s important to note that many potential vitamin B2 benefits only really apply if you are already deficient in the vitamin. In other words, if you eat a healthy, balanced diet you may be getting enough riboflavin naturally – in which case, you may see little to no benefit from taking a top riboflavin supplement. With that said, the vitamin is water soluble, so you can’t have too much of it, and there are very few side effects – so there is little harm in trying it out.

How to Take Riboflavin

Vitamin B2 is considered safe when taken orally. The recommended dietary allowance (RDA) is 1.3 mg for adult males and 1.1 mg for adult females. Pregnant women are advised to take 1.4 mg per day. Breastfeeding women are advised to take 1.6 mg per day.

For improving vitamin B2 deficiency, a riboflavin dosage of 5-10mg per day is recommended.

To support healthy homocysteine levels, 1.6 mg of vitamin B1 is recommended for a period of 12 weeks.

For eye health, 3mg of riboflavin per day combined with 40 mg of niacin is recommended.

For headaches, 400mg of vitamin B2 for a period of at least three months is recommended.

Riboflavin Side Effects and Precautions

Riboflavin is a water-soluble vitamin, so it cannot be stored in the body. There is no upper limit for intake levels that is likely to be dangerous. Some people may experience side effects such as discoloration in their urine; this is not harmful.

What to Look for in a Good Riboflavin Supplement

Look for a vitamin B2 supplement that does not contain unnecessary fillers, artificial colors or flavors and that uses organic or non-GMO ingredients. You also need to choose a riboflavin supplement that provides an effective therapeutic dose.

Top 10 Riboflavin Products Compared

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1. NOW Foods Vitamin B-2

NOW Foods Vitamin B-2

This is one of the best riboflavin supplements on the market. Each of these NOW Foods vitamin B2 capsules contains a serving of 100 mg of riboflavin. It is to be taken once daily with meals.


  • 100 mg per serving
  • This supplement contains no sodium, sugar, gluten, wheat, yeast, shellfish, egg or preservatives
  • Great price and value
  • Great reviews from customers
  • Made by an industry leader

Who Makes It?

NOW has been making products for the natural health industry since 1968.  The company owns several manufacturing and distribution facilities throughout Canada and the United States. Their main facility is home to a cutting-edge testing laboratory, were technicians perform more than 16,000 tests on their products on a monthly basis.

Bottom Line

This is perhaps the best riboflavin supplement available today, made by one of the world’s biggest and most trustworthy supplement manufacturers. It is available at a very reasonable price.

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2. Nature’s Way Vitamin B2

Nature's Way Vitamin B2

This is one of the best vitamin B2 supplements available. Nature’s Way offers a riboflavin supplement providing 100 mg of vitamin B2 per serving. It’s non-GMO and does not contain unnecessary fillers.


  • 100 mg of riboflavin per serving
  • Doesn’t include unnecessary fillers
  • Great customer reviews
  • Good value for money
  • Non-GMO ingredients

Who Makes It?

All Nature’s Way products are non-GMO, and TRU-ID™ certified.  TRU-ID™ is a testing program designed to use the latest DNA technology to guarantee the authenticity of herbal ingredients. All Nature’s Way green lid nutritional supplements are certified in this manner.

Bottom Line

This is a great choice if you are looking for a riboflavin supplement which is convenient and made from top-quality ingredients. It is manufactured by a company you can trust.

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3. Nutricost Vitamin B2

Nutricost Vitamin B2

This is one of the most powerful riboflavin supplements on the market, providing a total of 400mg of vitamin B2 per serving.


  • 400 mg per serving
  • 120 capsules
  • Gluten-free and non-GMO
  • Purity and quality guaranteed
  • It does not contain dairy, eggs, nuts, shellfish, soybeans or wheat.

Who Makes It?

As part of their commitment to providing only the best quality products, Nutricost makes sure that all their supplements meet or exceed industry best practices, state and federal guidelines. They are also tested for purity by an independent, 3rd party laboratory.

Bottom Line

If you want to optimize your intake of vitamin B2 without having to take 3-4 riboflavin tablets per day, this supplement is a winner. Just one convenient daily capsule provides all the vitamin B2 you need.

4. BulkSupplements Pure Riboflavin

BulkSupplements Pure Riboflavin (Vitamin B2) Powder

This BulkSupplements product is a 50-gram, sealed pouch of vitamin B2 powder for a very good price.


  • Variable dose (bulk powder)
  • Fine grade powder
  • Contains no fillers
  • Sealed in a foils pouch with zipper to maintain freshness
  • Very good reviews
  • Laboratory tested; purity guaranteed

Who Makes It?

BulkSupplements is based in Henderson, Nevada, and provides more than 300 pure nutritional supplement ingredients to manufacturers and consumers. The supplements are available in a range of different bulk weights.

Bottom Line

These supplements are a particularly good option if you’re looking for large amounts of pure herbs or vitamins. They are a bit less convenient to use, however.

5. Seeking Health Riboflavin

Seeking Health Riboflavin

This is a strong riboflavin supplement providing 400 mg of vitamin B2 with each serving. Only one capsule is needed per day.


  • Provides 400 mg of riboflavin per serving
  • Contains no common allergens, magnesium stearate or GMO
  • Vegan capsules
  • Physician formulated

Who Makes It?

Seeking Health is dedicated to supporting health with a range of nutritional supplements to support the body’s natural systems such as digestion, the immune system, and the nervous system.

Bottom Line

If you want a riboflavin supplement with a potent dose this is a good choice. It is also free of the most common allergens and is non-GMO.

6. Nature’s Life B-2 Tablets

Nature's Life B-2 Tablets

Nature’s Life is a pure and simple vitamin B2 supplement offering 250 mg per serving.


  • 250mg per serving
  • Medium potency
  • Discount for bulk packages
  • Great reviews
  • Has some fillers

Who Makes It?

Nature’s Life has been manufacturing health products for over 40 years. They currently offer over 400 vitamins, minerals, and specialty products.

Bottom Line

It’s a good product if you’re looking for a stronger than average vitamin B2 supplement. However, it contains the filler calcium carbonate, which means it’s not suitable for vegans or vegetarians.

7. Source Naturals Vitamin B-2 Riboflavin

Source Naturals Vitamin B-2 Riboflavin

Source Naturals Vitamin B2 riboflavin provides 100mg of vitamin B2 per serving.


  • 100mg per serving
  • Does not contain artificial flavors, colors or preservatives
  • Contains no gluten, sodium, egg, dairy, corn, soy or yeast
  • Suitable for vegans and vegetarians
  • Contains fillers
  • Expensive

Who Makes It?

Created in 1982, Source Naturals is renowned for developing the Wellness Formula®, a leading immune support product. The company focuses on formulating Bio-Aligned Formulas®, which are aimed at balancing the body’s total wellness.

Bottom Line

This supplement is quite expensive considering its low potency, even though the price is for two bottles. It also contains a number of fillers such as magnesium stearate.

8. Solgar Vitamin B2 Riboflavin

Solgar Vitamin B2 Riboflavin

Solgar Vitamin B2 riboflavin provides 100 mg of riboflavin per serving.


  • 100 mg per capsule
  • Suitable for vegetarians and vegans
  • Kosher, gluten-free and non-GMO
  • Very strong reviews
  • A bit expensive

Who Makes It?

Solgar is based in Leona, New Jersey and has been operating since 1947. The company has very high standards for quality control, and its products are distributed throughout the world in more than 60 countries.

Bottom Line

This supplement is a good choice for a low-dose riboflavin supplement. That said, this supplement does contain fillers.

9. Nature’s Bounty Vitamin B-2

Nature's Bounty Vitamin B-2

Nature’s Bounty riboflavin supplement provides 100 mg of vitamin B2 per serving.


  • 100 mg of vitamin B2 in each capsule
  • Bottle contains 100 riboflavin pills
  • Contains fillers

Who Makes It?

Nature’s Bounty has been manufacturing nutritional supplements for more than 40 years. As well as online, their products can be purchased at stores and pharmacies throughout the U.S. and Canada.

Bottom Line

This is an inexpensive, low-dose vitamin B2 supplement. It does contain fillers.

10. Solaray B-2

Solaray B-2

Solaray riboflavin supplement contains 100 mg of vitamin B2 per serving. This product has a recommended dose of one tablet per day to be taken with a meal or water.


  • Each tablet contains 100 mg of riboflavin
  • The bottle contains 100 tablets
  • This supplement contains gelatin and is not suitable for vegans or vegetarians
  • Contains fillers
  • The price is reasonable

Who Makes It?

Solaray is a subsidiary of Nutraceutical. It was founded in Utah in 1973 and acquired by Nutraceutical in 1993. As well as online, these products can be bought in health stores throughout the United States.

Bottom Line

This product is not a bad price for the dosage, but it does contain several fillers.