No Thanks

Your 10% Off Promo Code is on the Way! Thanks for signing up for emails.

You're now signed up to receive exclusive deals and savings opportunities!

Thanks again for connecting with us. Keep an eye on your inbox — your first coupon is on its way!

Thank You! This email address is already signed up

You are signed up for the following:

  • Offers
  • Recipes
  • E-Newsletter
  • Updates & Reminders

Thank you for your interest and be assured that you will continue to receive our emails at this address.

Look for your next communication from us within the next week.


We are having trouble processing your request.

Our apologies!

Please try again later.

Search Please enter an item number or keyword
Shop by
Do You
Need Help?

Swanson Premium

Vitamin B-2 (Riboflavin)

Vitamin B-2 (Riboflavin)

Item: SW018

  • Economical B-vitamin support for a wide-spectrum of health benefits

  • Aids proper thyroid function, eye health and much more*

  • Each convenient capsule delivers a potent 100 mg of riboflavin

100 mg 100 Caps
Caps Size: 1

MSRP $5.49
Save 27%
Yes! I want 10% off and free shipping over $50 on my next automatic shipment of this item.  days. Learn more
In Stock

Supplement Facts

Serving Size 1 Capsule

  Amount Per Serving % Daily Value
Riboflavin USP (vitamin B-2) 100 mg 5,882%

Other ingredients: Rice flour, gelatin, calcium palmitate.

Suggested Use: As a dietary supplement, take one capsule per day with food and water.

Relative Size

Printable Size Guide

Shipping Weight

.15 lbs

  • Economical B-vitamin support for a wide-spectrum of health benefits

  • Aids proper thyroid function, eye health and much more*

  • Each convenient capsule delivers a potent 100 mg of riboflavin

To keep your body in A-1 condition, you need a good daily supply of vitamin B-2! Although it's known as vitamin B-2, riboflavin is second to none in importance for good health. Best known for its crucial roles in thyroid function and energy metabolism, it's also essential for healthy vision.* Our Vitamin B-2 capsules provide a potent 100 mg of pure riboflavin to meet even the highest nutritional demands.

Swanson Premium Vitamin B-2 (Riboflavin) Reviews

Summary of Customer Ratings & Reviews

Customer Ratings & Reviews

Vitamin B-2 (Riboflavin) is rated 4.8 out of 5 by 32.
Rated 3 out of 5 by from B-2 I have been taking this about a month and can't really say that I feel a difference. I will continue to use the rest of the bottle but not sure if I will re-order. I have not felt any negative effects so that is good too as some B vitamins are too strong and make me tired instead of giving me energy.
Date published: 2015-12-19
Rated 5 out of 5 by from Energy I know when I have forgotten to take it.
Date published: 2015-08-03
Rated 5 out of 5 by from Good quality! Rely on Swanson to give the most for your money, and quality besides!
Date published: 2014-12-18
Rated 5 out of 5 by from Excellent Product I was leery of this at first, as I usually purchase pharmaceutical grade B-2, but it is just as effective - at a MUCH better price! Swanson has not let me down yet.
Date published: 2014-12-11
Rated 5 out of 5 by from Great price Swanson offers the best value for basic vitamins. No need to pay extra for just the name brand.
Date published: 2013-12-22
Rated 5 out of 5 by from Exceptional Product! Since I started taking Riboflavin, my energy level is up and my fatigue and lack of energy (which I thought was due to old age) has improved greatly.
Date published: 2013-07-31
Rated 5 out of 5 by from The right size b-2 I take all my B's separately because of allergies to some. This one is good and the right size that I need. Got 4 stars on satisfaction because I am hoping Swanson's will begin to carry the Riboflavin-5-phosphate soon.
Date published: 2013-06-07
Rated 5 out of 5 by from Great price, but too small I am really happy with these, but wish that they were available in bottles of 300. I take 8 a day, so it doesn't take me long to go through a bottle. As I cannot ship more than 5 bottles at a time to Canada, it means that I have to order more often, which is inconvenient.
Date published: 2013-05-10
Rated 5 out of 5 by from B2 vitamin source One of the first vitamins I've purchased from Swanson, but I am as pleased with them as I am with their herbal supplements, extracts, and oils. Please don't be afraid to try Swanson because of the low price. I find them to have as high a quality as products much more costly. I just wish I could find everything I use here.
Date published: 2013-04-12
Rated 5 out of 5 by from Perfect Inexpensive, and free of artificial fillers. Love it!
Date published: 2013-03-29
Rated 5 out of 5 by from great product I realized a difference after a week or so. my appitite is well under control, I'm losing weight (mostly fat) and feeling more energenic than I have in years
Date published: 2012-07-09
Rated 5 out of 5 by from Great product This product has been helpful to me in many different ways. I highly recommend it to anyone.
Date published: 2012-04-02
Rated 4 out of 5 by from Good product - Great price! I'm very happy with the Swanson brand overall and this B2 is comparable to pricier brands
Date published: 2011-09-05
Rated 5 out of 5 by from There are times when you need a B-2 Boost I take a lot of supplements but at times I feel I need a specific boost from a specific product. I feel that this product does what I need it to do when I need it to do it. Of course the price and quality of the product make it an unbeatable value. As with all supplements changes are subtle and it can take time to feel the effects. I always look for long term benefits and if this one has it if your looking for it should do what you want.
Date published: 2011-08-07
Rated 5 out of 5 by from Lives up to expectation Very small capsules and definitely easy to take. This is an affordable way of taking the amount recommended by my doctor.
Date published: 2011-04-27
Rated 4 out of 5 by from very satisfied after taking this brand for a while the results are the same as any higher priced product
Date published: 2010-06-18
Rated 5 out of 5 by from Now after a few weeks I could really see the effect because its great for healthy eye care and vision and I like to use the computer oftem and I would sometimes get a little eye strain and I no longer feel any strain on my eyes.
Date published: 2009-07-11
  • y_2017, m_12, d_14, h_19
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.3
  • cp_1, bvpage1
  • co_hasreviews, tv_15, tr_17
  • loc_en_US, sid_SW018, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_swansonhealth
Swanson Quality Assurance

Why Shop Swanson®?

We know how important your health is to you and your loved ones. That’s why we’re focused on delivering only high quality products you can trust at the best value.

Our lab evaluates every product to make sure it’s compliant with strict standards and government regulations, and we fully believe in and stand behind our products. If you’re dissatisfied for any reason, we’ll give you a full refund and pay return shipping.

Swanson's Standards

We are dedicated to offering the highest quality products at the best price. Find out more about how we ensure such a high standard in everything we do.

Learn More
Customer Service
About Swanson

Easy Refill

  • Get your favorite products delivered automatically
  • 10% off future orders of Swanson brand products in your subscription
  • FREE standard shipping on all future orders over $50
  • Control the frequency, delivery date, item quantity... or cancel at any time
  • Email reminders before each delivery
See all FAQs here