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Swanson Premium

Buffered C w/ Bioflavonoids

Item: SW944

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Swanson $5.49
Retail $9.99
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500 mg 100 Caps

Caps Size: OO, Pill Size Guide

  • Take higher doses of C without stomach irritation



  • Gently buffered to neutralize acidity



  • Bioflavonoids enhance antioxidant properties


For a powerful boost of antioxidant protection that won't upset your stomach, Swanson Buffered C with Bioflavonoids is an excellent choice. It features a unique form of vitamin C that's bonded to calcium through a special process that neutralizes the vitamin's acidity, making it gentler on the stomach--but that's not all. Each capsule also includes 200 mg of natural citrus bioflavonoids that promote efficient assimilation of vitamin C and enhance its antioxidant potency.

Lee Swanson, President

Risk-Free Purchase Guarantee

If you are dissatisfied for any reason, we'll give you a full refund and pay return shipping. Lee Swanson, President of Swanson Health Products

Product Description:

Buffered C w/ Bioflavonoids

"Have been using this vitamin C for years and couldn't be happier with the supplement. Easy on the stomach and very absorbable." ~product review by Neptune

  • Take higher doses of C without stomach irritation



  • Gently buffered to neutralize acidity



  • Bioflavonoids enhance antioxidant properties


For a powerful boost of antioxidant protection that won't upset your stomach, Swanson Buffered C with Bioflavonoids is an excellent choice. It features a unique form of vitamin C that's bonded to calcium through a special process that neutralizes the vitamin's acidity, making it gentler on the stomach--but that's not all. Each capsule also includes 200 mg of natural citrus bioflavonoids that promote efficient assimilation of vitamin C and enhance its antioxidant potency.

Product Label:

Buffered C w/ Bioflavonoids

Supplement Facts

Serving Size 1 Capsule

  Amount Per Serving %Daily Value
Vitamin C (as calcium ascorbate) 500 mg 833%
Calcium (from calcium ascorbate) 60 mg 6%
Citrus Bioflavonoid Complex 200 mg *

Percent Daily Values are based on a 2,000 calorie diet.

*Daily Value not established.

Other ingredients: Gelatin, rice flour, may contain one or both of the following: magnesium stearate, silica.

Suggested use: As a dietary supplement, take one capsule one to two times per day with water or as recommended by your healthcare provider.

Terms and Ingredient Definitions

Buffered C w/ Bioflavonoids

Swanson $5.49
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Swanson Premium Buffered C w/ Bioflavonoids Reviews

Summary of Customer Ratings & Reviews

Customer Ratings & Reviews

Rated 4.6 out of 5 by 50 reviewers.
Rated 5 out of 5 by Good value I've taken this product for years and like it a lot. June 26, 2015
Rated 5 out of 5 by Easy on tummy The acid in regular C bothers my stomach. This does not and at a great price compared to retailers and other online stores. December 13, 2014
Rated 5 out of 5 by Good value Good value. I once got some straight ascorbic acid, and quickly saw a deficiency - we need the buffered stuff. November 12, 2014
Rated 4 out of 5 by focus on product Actually, I've never used Buffered Vit C before but the service is great and the prices are the best for what seems to be quality. November 10, 2014
Rated 4 out of 5 by Ok product but... I found this buffered vitamin C to be very cost effective. The only issue (and it could just might be My problem) is it could use a little more buffer to it. I have a very slight burning sensation in my gut after taking one. A lot less mind you the regular C but still compared to other major brands I have bought at the health food store it still has more bite to it. Overall though a good product. October 15, 2014
Rated 5 out of 5 by Good vitamins for a lower price It works well and does not upset my stomach. August 20, 2014
Rated 5 out of 5 by Excellent! I love that this buffered C is in capsules. It is easy on digestion, and it is an added plus that it is fortified with bioflavonoids. It's my favorite way to take vitamin C. July 25, 2014
Rated 5 out of 5 by vitamin c Easy to swallow vitamin C are easier on my stomach than some other forms, and easier to swallow. March 3, 2014
Rated 5 out of 5 by always good to take buffered C This is a very reasonable source. Ascorbic ACID by itself can cause stomach problems. My Dad had this and when i switched to this, the problems disappeared. January 15, 2014
Rated 5 out of 5 by Great value Vit C This buffered C is a great price, and is gentle on the stomach. December 18, 2013
Rated 5 out of 5 by Love it! I've been using this particular vitamin c for years now. We love it. November 22, 2013
Rated 5 out of 5 by best yet best value from a reputable company November 15, 2013
Rated 5 out of 5 by Perfect Have been using this vitamin C for years and couldn't be happier with the supplement. Easy on the stomach and very absorbable. September 16, 2013
Rated 5 out of 5 by Great for people who have issues This is a great product. The thing I most appreciate about it is that I can get my vitamin C with no stomach problems. I have a sensitive stomach system and these are great. No problems at all. August 12, 2013
Rated 1 out of 5 by Too much filler This product has a lot of fillers. I am not sure how much actual vitamin C it has. July 29, 2013
Rated 5 out of 5 by Perfect I would recommend this to anyone. It has always been the perfect supplement. July 15, 2013
Rated 5 out of 5 by A Must Have My husband and I both take this Vitamin C and have great results from it. Years ago there was a more expensive, name-brand we would buy from Swanson. But it became unavailable so we switched to this and have been extremely satisfied. It is a "staple" in our home. Thank you Swanson for the affordable price. June 12, 2013
Rated 5 out of 5 by As good as Ester C As an older adult, some vitamins cause digestive upset. I like this product. May 28, 2013
Rated 5 out of 5 by Vitamin C buffered This is a staple in my daily vitamin's and as it is buffered which I need it is a huge plus. April 29, 2013
Rated 5 out of 5 by Excellent Product Excellent product. Will purchase again. Would like to see this product in a 1,000 mg. capsule. It currently is sold only in tablet form for the 1,000 mg. strength. March 23, 2013
Rated 5 out of 5 by Love this product I love this buffered C. It never causes stomach upset, like other brands that are not buffered. The capsule is a little too big for me, so I just open up 2 capsules, add to some applesauce. I won't take any other vit C. The price is great too. Thanks Swanson! March 22, 2013
Rated 5 out of 5 by a great vitamin C My Husband and I have been taking this buffered C with bioflavonoids for quite a few years and really like it - get your vitamin C and flavonoids together! Since we each take them twice daily, this bottle of 100 caps only lasts 25 days. I wish that Swanson would offer it in a larger size = perhaps 250 in a bottle. January 26, 2013
Rated 5 out of 5 by Highly Recommend! The first vitamin C supplement I've been able to take without suffering from severe acid reflux, heartburn and indigestion. Good stuff! January 15, 2013
Rated 2 out of 5 by I used this regularly in part because it had no magnesium stearate. But recently they put magnesium stearate in it, which causes me leg cramps at night. I did not know they had put magnesium stearate in it but I started having cramps and checked al my supplements and there it was. Quit this and my leg cramps quit. Found other sources of C with no stearates. Swanson had a study done that showed Magnesium sterates causes no harm. I see lots of such studies that later are not correct. I love Swanson except for the fact that they are putting stearates into many supplements that previously had none July 27, 2012
Rated 5 out of 5 by Excellent! I love the price of this great quality product. I've purchased this many times and am pleased to buy again and again. Does not upset my stomach. March 30, 2012
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Buffered C w/ Bioflavonoids