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Swanson Premium

L-Arginine

Item: SW935

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Swanson $7.99
Retail $12.49
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500 mg 200 CapsOther Sizes

Caps Size: O, Pill Size Guide

  • Valuable, free-form amino acid nutrition



  • Provides fundamental nourishment for immune and cardiovascular systems



  • Teams with methionine and glycine to aid the making of energy in your muscles


Maintain cardiovascular and immune system health with Swanson L-Arginine! An economical and effective addition to your dietary plan, this capsule of this fundamental amino acid delivers 500 mg of free-form L-arginine.

Why Shop Swanson® Brands?

"With my personal 100% money-back satisfaction guarantee, you have nothing to lose and great savings to gain." Lee Swanson, President of Swanson Health Products

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Product Description:

L-Arginine

"I have an increase in energy and endurance. I ordered extra this time - would not want to be without it." ~ product review by Ticket

  • Valuable, free-form amino acid nutrition



  • Provides fundamental nourishment for immune and cardiovascular systems



  • Teams with methionine and glycine to aid the making of energy in your muscles


Maintain cardiovascular and immune system health with Swanson L-Arginine! An economical and effective addition to your dietary plan, this capsule of this fundamental amino acid delivers 500 mg of free-form L-arginine.

Product Label:

L-Arginine

Supplement Facts

Serving Size 1 Capsule

  Amount Per Serving % Daily Value
L-Arginine (free-form amino acid) 500 mg *

*Daily Value not established.

Other ingredients: Gelatin, may contain one or more of the following: microcrystalline cellulose (plant fiber), magnesium stearate, silica.

Suggested Use: As a dietary supplement, take one capsule one to two times per day with water.

WARNING: Not intended for use by children or pregnant women. Consult your healthcare provider before use if you have renal or liver disease. Reduce dosage if you experience nausea, abdominal cramps or diarrhea.

Terms and Ingredient Definitions

L-Arginine

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Swanson Premium L-Arginine Reviews

Summary of Customer Ratings & Reviews

Customer Ratings & Reviews

Rated 4.8 out of 5 by 36 reviewers.
Rated 4 out of 5 by Pretty good brand I've use this and nows brand, don't know if I should take it every day without cycling but it keeps me looking vascular. August 8, 2015
Rated 5 out of 5 by It Works Hubby and I are both happy with the results from taking this. We take it twice daily and it has made all the difference for us and has not let us down. Will continue to take. May 31, 2015
Rated 5 out of 5 by Good Amino to Have Around When I was younger this amino was great for getting that "pump" when working out. Now that I'm middle aged, I'm happy to take it for improving my circulation and as a male tonic. You can really feel this amino going to work if you take it by itself. Swanson's brand is great too. March 28, 2015
Rated 5 out of 5 by Very Effective Supplement This supplement definitely aids in the maintenance of blood pressure. It has also increased my feeling of well being. February 25, 2015
Rated 5 out of 5 by Good value Quality is equivalent to any other L-arg product and you can't beat the price. February 19, 2015
Rated 5 out of 5 by Swanson's L-Arginine L-Arginine is so important for our bodies, in so many ways. It is really hard to get this amount just from daily diet alone, and so I take this amino acid daily. Great price for this amount as well. Thanks Swanson! August 12, 2014
Rated 5 out of 5 by Great Combo Supplement With a tip from well educated healthy people I tried this. Taurine and this combo is some magic stuff for me. Take 5 daily with Taurine 2 at 1000mg. I feel years unger and my energy it top knotch. Will continue. May 20, 2014
Rated 5 out of 5 by Great product Great price I take this every day because as we get older we need to take this. January 4, 2014
Rated 5 out of 5 by Intimacy Another supplement that helps with intimacy. December 31, 2013
Rated 5 out of 5 by L-Arginine 500 mg Caps I take one morning and evening and I feel better and have more energy. December 30, 2013
Rated 5 out of 5 by Energy I have used this Swanson product for about 3 months. One pill three times a day. I have an increase in energy and endurance. I ordered extra this time - would not want to be without it. December 5, 2013
Rated 5 out of 5 by Good for Me I've taken this product for over two years, and my wife and I agree that I have been revitalized, both as to my energy level and my alertness. October 30, 2013
Rated 5 out of 5 by BEGINNER ARGININE Starting out, I used the 500 mg. L-Arginine capsules, because that is what was available and what I was aware of. I took 4 capsules at a time to get the 2 gram dose I wanted. I felt that I was getting good results from my two grams of Arginine along with the other Aminos I took with it. Then, the more reading I did and the more I found out led me to larger dosages, at which time I found Swanson's 900 mg. and 1,000 mg. Arginine capsule products, as well as Swanson's Arginine powder. These all work great for me, and I am in complete control of the potency and number of capsules or amount of powder I want at any given time. I make sure to take ample L-Arginine at least twice daily for my muscles, heart, circulation, and overall wellness and fitness. I find that L-Arginine produces the noticeable, favorable results I am looking for. It's all positive for me. I heartily recommend it. And at Swanson's very reasonable prices, L-Arginine 500 mg. capsules are extremely affordable. August 26, 2013
Rated 5 out of 5 by L-Arginine 500mg - take 2 caps I have been taking 1000 mg of this product for a few years now, just before bedtime, and I've no more problems with sleepless nights any more. August 8, 2013
Rated 5 out of 5 by We love it It is a very good addition to our vitamins and minerals. Reliable and excellent service. July 30, 2013
Rated 5 out of 5 by Excellent Product I will continue to order and use this product. June 27, 2013
Rated 5 out of 5 by Excellent product This is another great supplement from Swansons! Does what it's supposed to do, doesn't get any easier than that! May 6, 2013
Rated 5 out of 5 by Good fitness supplements Supposed to increase free Testosterone and help in muscle building. A good addition to vitamin regimen for fitness lovers March 19, 2013
Rated 5 out of 5 by L-Arginine I really appreciate what L-Arginine has done for me. It has helped me in many ways. December 15, 2012
Rated 5 out of 5 by Good Product, Good Value I have been taking this product for quite some time. It does work very well but if you add a small amount of L Citrulline with it, the combination works much better. For me at least. I take 2000 mg of the L Arginine and 850 mg of the L Citrulline per day. Took me about a week to recognize results. June 1, 2012
Rated 5 out of 5 by Excellent product I take this product before going to the gym to give me a little extra energy during my workout and I have great success with it. It increases blood flow, which also helps in the bedroom. I take 4 pills and it does the trick. I recommend it and as always, Swanson's prices are the best. April 6, 2012
Rated 5 out of 5 by What a change. For a couple of months my husband has been taking L-arginine. Both him and myself have seen a difference in his overall well being. He feels much better about a lot of things. We love this product. Thank you. March 19, 2012
Rated 5 out of 5 by Great product at a great price My husband and myself have taken L-Arginine for many years. We find Swanson Premium L-Arginine to be of high quality and also at a Great Price. We are extremely pleased with the results. June 29, 2011
Rated 5 out of 5 by Happy with results I uses this in combination with 5 other supplements as an all night fat burner (taken on empty stomach before bed). I am happy with the results. June 15, 2011
Rated 5 out of 5 by Important Amino Acid I started taking various amino acids plus a multiple amino acid complex about 1986. They added something to my mood, energy and thinking that I seemed to require then and seems diminished any time I try to leave them off. I recently added arginine to see if I notice a difference. Maybe an increase in energy with this one. July 24, 2010
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