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Top 5 Best Vitamin B2 Supplements in 2025
Riboflavin, or more commonly known as Vitamin B2, is a vital nutrient that is instrumental in promoting optimum health. It partakes in numerous bodily processes such as energy creation, metabolism, and in keeping our skin, eyes, and nervous system healthy. Although a well-balanced diet can provide sufficient Vitamin B2, some individuals might need extra supplements to fulfill their daily nutritional requirements.
In this article, we will be discussing the best vitamin B2 supplements available on the market. We have researched and tested various products to identify the ones that are effective, safe, and provide the best value for money. Our goal is to help you make an informed decision when choosing a vitamin B2 supplement.
When looking for a vitamin B2 supplement, it is essential to pay attention to the type of riboflavin used in the product. There are two forms of vitamin B2: riboflavin and riboflavin-5-phosphate. Riboflavin is the most common form found in supplements, while riboflavin-5-phosphate is a more bioavailable form that is easier for the body to absorb. Additionally, it is crucial to consider the dosage, purity, and quality of the supplement.
We spent several weeks researching and testing various vitamin B2 supplements to identify the ones that meet our criteria. In the following sections, we will be discussing our top picks and providing a detailed analysis of each product. Whether you are looking to boost your vitamin B2 intake or address a specific health concern, we’ve got you covered.
Best Vitamin B2 Supplements
We have researched and compiled a list of the best vitamin B2 supplements available on Amazon. Vitamin B2, also known as riboflavin, is an essential nutrient that plays a crucial role in maintaining overall health and wellbeing. It is involved in energy production, cellular function, and the metabolism of fats, carbohydrates, and proteins. Our selection of supplements includes a variety of options, from capsules to powders, that are designed to help you meet your daily vitamin B2 requirements. Read on to discover which products made our list of the best vitamin B2 supplements.
1. Nutricost Vitamin B2 (Riboflavin) 400mg, 120 Capsules

If you’re looking for a high-quality vitamin B2 supplement, Nutricost Vitamin B2 (Riboflavin) 400mg, 120 Capsules is a great option to consider.
Pros
- Each capsule contains 400mg of premium vitamin B2 (Riboflavin), which is a high dose for those who need it.
- The bottle comes with 120 capsules, which means you’ll have 120 servings per bottle. That’s a great value for the price.
- This supplement is non-GMO, gluten-free, and 3rd party tested, which means you can trust the quality of the product.
Cons
- Some users have reported that the capsules are too big, making them difficult to swallow.
- The yellow color of the capsules may stain clothing or other surfaces if they are not handled carefully.
- While some users have reported positive effects from taking this supplement, others have not noticed any difference in their health or energy levels.
In our experience, Nutricost Vitamin B2 (Riboflavin) 400mg, 120 Capsules is a good choice for those who need a high dose of vitamin B2. The capsules are easy to take, and the bottle provides a good value for the price.
If you’re looking for a vitamin B2 supplement that is non-GMO, gluten-free, and 3rd party tested, this product is a great option. However, if you have difficulty swallowing large capsules or are looking for a supplement with additional ingredients, you may want to consider other options.
2. ForestLeaf Vitamin B2 Riboflavin, 400mg

ForestLeaf Vitamin B2 Riboflavin, 400mg is a non-GMO and gluten-free dietary supplement that promotes overall good health for your body. This supplement helps break down fats, carbohydrates, and proteins so you produce energy faster. It also helps reduce migraine headaches and symptoms. We highly recommend this product for anyone looking for a high-quality vitamin B2 supplement.
Pros
- ForestLeaf Vitamin B2 Riboflavin, 400mg promotes overall good health for your body.
- This supplement helps break down fats, carbohydrates, and proteins so you produce energy faster.
- It helps reduce migraine headaches and symptoms.
Cons
- It may take some time to see results.
- The capsules may be difficult to swallow for some people.
- It may not work for everyone.
ForestLeaf Vitamin B2 Riboflavin, 400mg is a powerful vitamin that promotes overall good health for your body. It helps break down fats, carbohydrates, and proteins so you produce energy faster. This supplement is perfect for anyone looking to maintain energy longer to feel great. Studies have shown that a daily dose of 400mg of riboflavin, which is the exact amount in each capsule, may help in reducing migraine headaches and reduce migraine symptoms so you’re always feeling good!
The non-GMO and gluten-free capsules ensure you never put anything harmful in your body. You can take this supplement freely or while on a strict diet. ForestLeaf Vitamin B2 Riboflavin, 400mg is homemade right here in the USA and made with the essentials without anything else to enhance taste or texture.
Overall, we highly recommend ForestLeaf Vitamin B2 Riboflavin, 400mg for anyone looking to maintain overall good health for their body and reduce migraine headaches and symptoms.
3. Divine Bounty Super B Complex Vitamins

We highly recommend the Divine Bounty Super B Complex Vitamins for anyone looking for a high-quality and effective vitamin B2 supplement.
Pros
- This supplement contains all essential B vitamins in one capsule, making it a convenient option for those who prefer to take their B vitamins together.
- With 90 capsules per bottle, this is one of the best value vitamin B supplements on the market.
- The formula is made up of pure ingredients with no harmful additives, making it a clean and safe option for daily use.
Cons
- Some users may experience mild side effects such as upset stomach or headaches.
- The size of the capsules may be difficult for some people to swallow.
- The supplement may not be suitable for those with certain medical conditions or who are taking certain medications.
We have found that the Divine Bounty Super B Complex Vitamins are a great way to supplement any deficiencies in B vitamins that may be missing from your diet. The formula is made up of high-quality ingredients and is free from any harmful additives.
If you are looking for a convenient and affordable way to boost your energy and support healthy metabolism, we highly recommend giving this supplement a try.
4. DEAL SUPPLEMENT Vitamin B2 Riboflavin 400 mg, 240 Capsules

If you’re looking for an extra strength vitamin B2 riboflavin supplement that is easy to absorb, you might want to consider DEAL SUPPLEMENT Vitamin B2 Riboflavin 400 mg. With a high bioavailable top-grade free form, this essential micronutrient vitamin may support a wide range of benefits around the body, including promoting healthy cells, food breakdown, nervous system, energy levels, and heart health.
Pros
- Extra strength serving size
- Non-GMO ingredients
- 3rd party lab tested
Cons
- Large capsule size
- May cause yellow urine
- May cause stomach upset if taken on an empty stomach
We have been taking DEAL SUPPLEMENT Vitamin B2 Riboflavin 400 mg for a few weeks now, and we’re happy with the results. We noticed an increase in energy levels and overall daily balance. The riboflavin form is considered more stable and offers a more complete B2 experience. We also appreciate that this supplement is made without preservatives, gluten, dairy, eggs, peanuts, soy, wheat, & yeast.
One of the best things about DEAL SUPPLEMENT Vitamin B2 Riboflavin 400 mg is that it comes in a bulk 240-day supply that contains 400mg vitamin B2 with every dose. Each serving only requires one capsule, which makes it easy to take on-the-go. The non-GMO ingredients are 3rd party lab tested and passed, ensuring that you’re getting a quality product.
However, we did notice that the capsule size is quite large, which may be difficult for some people to swallow. Additionally, taking this supplement may cause yellow urine, which is a common side effect of taking vitamin B2. We also experienced some stomach upset if we took it on an empty stomach, so it’s best to take it with food.
Overall, we think that DEAL SUPPLEMENT Vitamin B2 Riboflavin 400 mg is a great option for those who are looking for an extra strength vitamin B2 riboflavin supplement that is easy to absorb and offers a wide range of benefits. If you’re looking for a quality product that is non-GMO, 3rd party lab tested, and made without preservatives, gluten, dairy, eggs, peanuts, soy, wheat, & yeast, this might be the perfect supplement for you.
5. NOW Supplements, Vitamin B-2 (Riboflavin) 100 mg, Energy Production*, 100 Veg Capsules 100 Count (Pack of 1)

If you’re looking for a high-quality vitamin B2 supplement, NOW Supplements, Vitamin B-2 (Riboflavin) is definitely worth considering.
Pros
- This supplement is a great source of vitamin B2, which is an important enzyme cofactor necessary for energy production from carbohydrate, fat, and protein.
- It also supports the body’s natural defense mechanisms and detoxification systems by regenerating glutathione.
- The supplement is non-GMO, soy-free, sugar-free, corn-free, low-sodium, and made without gluten or dairy.
Cons
- Some people may experience difficulty sleeping if they take this supplement later in the day.
- Natural color variation may occur in this product.
- The capsules may arrive warm during summer months due to shipping.
We’ve been using NOW Supplements, Vitamin B-2 (Riboflavin) for a few weeks now and have noticed an increase in our energy levels throughout the day. It’s also great to know that this supplement is free from harmful additives like GMOs, soy, and sugar.
One thing to keep in mind is that this supplement may cause difficulty sleeping if taken later in the day, so it’s best to take it in the morning. Additionally, the capsules may arrive warm during summer months due to shipping, but this shouldn’t affect the quality of the product.
Overall, if you’re looking for a high-quality vitamin B2 supplement, we highly recommend giving NOW Supplements, Vitamin B-2 (Riboflavin) a try.
Buying Guide
When it comes to choosing the best vitamin B2 supplement, there are a few key factors to consider. Here are some things to keep in mind:
Dosage
The recommended daily intake of vitamin B2 for adults is around 1.1-1.3 mg per day. When choosing a supplement, make sure to check the dosage per serving and the number of servings per container. This will help you determine how long the supplement will last and whether it provides the appropriate amount of vitamin B2 for your needs.
Form
Vitamin B2 supplements come in various forms, including capsules, tablets, and liquids. Consider which form is most convenient for you to take and which one is more easily absorbed by your body.
Quality
Look for products that are manufactured by reputable companies and have undergone third-party testing for purity and potency. This will help ensure that you are getting a high-quality product that contains the amount of vitamin B2 listed on the label.
Other Ingredients
Check the ingredient list for any potential allergens or additives that you may want to avoid. Some supplements may also contain additional vitamins or minerals, which can be beneficial if you have other nutritional needs.
Price
Cost is always a consideration when purchasing supplements. Compare prices across different brands and forms to find the best value for your budget.
By keeping these factors in mind, you can choose a vitamin B2 supplement that meets your needs and supports your overall health and wellness.
Frequently Asked Questions
What are the potential side effects of taking 400 mg of vitamin B2?
Taking 400 mg of vitamin B2 per day is generally safe and well-tolerated. However, some people may experience mild side effects such as diarrhea, nausea, or yellow discoloration of urine. If you experience any unusual symptoms, it is recommended to consult a healthcare professional.
How can vitamin B2 supplementation aid in managing migraines?
Vitamin B2, also known as riboflavin, has been shown to be effective in reducing the frequency and severity of migraines. It is believed that vitamin B2 helps to improve mitochondrial function, which plays a role in migraine pathophysiology. The recommended dosage for migraine prevention is 400 mg per day, taken in divided doses.
What is the recommended daily dosage of vitamin B2 for deficiency treatment?
The recommended daily dosage of vitamin B2 for deficiency treatment is 5-30 mg per day, depending on the severity of the deficiency. However, it is important to consult a healthcare professional before starting any supplementation regimen.
Which retailers offer the best selection of vitamin B2 supplements?
There are many retailers that offer a wide selection of vitamin B2 supplements, including health food stores, online retailers, and pharmacies. It is important to choose a reputable retailer and to check the label for quality and purity.
What are the differences between 200 mg and 400 mg vitamin B2 supplements?
The main difference between 200 mg and 400 mg vitamin B2 supplements is the dosage. 400 mg is the recommended dosage for migraine prevention, while 200 mg may be sufficient for other purposes such as deficiency treatment. It is important to consult a healthcare professional before starting any supplementation regimen.
Should vitamin B2 be taken in the morning or at night for optimal absorption?
There is no specific time of day that is recommended for taking vitamin B2 supplements. However, it is generally recommended to take them with a meal to aid in absorption. It is important to follow the instructions on the label and to consult a healthcare professional before starting any supplementation regimen.
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