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Swanson Premium

Super Strength L-Arginine

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Retail $10.49
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Caps Size:
OO, Pill Size Guide
900 mg 90 Caps

"this product helps me to maintain my muscles" ~product review by howz

  • Super Strength L-Arginine

  • Aids in promoting blood flow

  • 900 mg L-Arginine in each capsule

Swanson Super-Strength L-Arginine is an antioxidant amino acid that helps encourage the production of nitric oxide, a compound that helps keep blood vessels dilated to promote blood flow.

Choose capsules or our easy-mixing Arginine AKG Powder.


Q: What does the “L” stand for?
A: The “L” designates the free-form amino acid that is most bioavailable.

Q: A powdered arginine suggests a daily dosage of 4.6 grams (4,600 mgs) per day of L-Arginine, whereas SW1293 suggests up to 2 capsules of 900 mgs per day or 1800 mgs total. How do you explain this?
A: For many supplements, there is a range of use varying from light general maintenance to more intensive support. Each individual should select the degree of support that suits his or her specific needs.

Q: What’s the difference between L-Arginine and Arginine AKG?
A: Arginine AKG has arginine bound to Alpha Ketoglutarate to enhance absorption and utilization.

Product Label

Supplement Facts

Serving Size 1 Capsule

  Amount Per Serving % Daily Value
L-Arginine 900 mg *

*Daily Value not established.

Other ingredients: Gelatin, 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 or nursing 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

Swanson Premium Super Strength L-Arginine Reviews

Summary of Customer Ratings & Reviews

Customer Ratings & Reviews

Super Strength L-Arginine 4.6 5 75 104
for strength this product helps me to maintain my muscles March 7, 2014
Great 4 Nitric Oxide I have used this product for the benefits of getting more Nitric Oxide into my system. The increased Nitric Oxide helps for the flow of your blood, and along with a plant based diet, has great increased the blood flow in my circulatory system. January 22, 2014
Great product and price I have been very pleased with Swanson's Beta-Alanine. The price is great. December 29, 2013
no happy I bought this product and another and both times they came apart. I have a weekly pill container separating am and pm pills I take. After separating they made a mess inside my pill case. I have never had pill separate like this before. I wont buy these again for that fact December 17, 2013
Well worth $ Would continue to buy from Swanson December 12, 2013
Better Circulation & Energy In taking this product I found that my balance became vastly improved. I also noticed better circulation to my legs and more overall energy. I take 1 capsule twice a day. My wife has also noticed more energy as well. She only takes 1 capsule once a day. November 28, 2013
its go time I am a 51 year old male. I run 6 miles 3 times a week and do T25 workout. Prior to both my workouts I take this product and feels like it alerts my body system and gets me through my workouts. November 28, 2013
L-arginine I have been using this product for many years. I use it for it's reputation for helping circulation. November 23, 2013
Good after workout recovery supplement My wife takes this after her long runs and tells me not to let her run out! October 31, 2013
Super Strength L-Arginine Excellent product and price! Use it everyday. October 21, 2013
Long time user Been using this product for years. I believe it does what it is supposed to do. Few months back added the Arginine powder to my regimen by adding it to my green drink. I alternate at times with this product on the days I do something other than green drink. October 18, 2013
Good Addition This item appears to work in conjunction with other supplements such as Argenine, coffe bean extract, african mango, alpha lipoic acid and others. October 12, 2013
Blood Circulation After taking this i feel there is a improved difference in blood flow to specific body area's. Works great for me. October 3, 2013
Great Product! I love this product. It works great and makes me feel amazing. September 22, 2013
Does what the label says I've been taking this for quit some time now. I'm a 61 year old plumber that still works with his tools. Anything that can help me get through the day is great. I take this three times a day and it seems to help with the afternoon slump. It also helps in the bedroom too ;-) September 22, 2013
Very helpful in maintaining energy levels. September 22, 2013
Very effective! I buy this product for my husband. He is 63 years old and still works out vigorously in the gym. For years he used products that had ingredients that concerned me. I convinced him to give pure arginine a try and he has been very happy with the results and that is all that he uses now. September 4, 2013
L-arginine L-Arginine 900 mg meets the needs for which I purchased it without side effects when taking one 900 mg capsule each day, There are side effects when attempting to take higher doses. September 1, 2013
Been beneficial to my husbands circulation !!! August 30, 2013
A quality purchase Swanson does it again with a quality product at an affordable price. Thanks August 21, 2013
Great for needed energy As an aging Baby Boomer, I periodically feel lacking in the energy department. Whenever I have a task that needs energy to complete the task, I've found that L-Arginine gives me the additional boost I need. August 16, 2013
Excellent product I use this product to help my body produce more nitric oxide. I have plenty of energy at the end of the day or after my physical workout. August 16, 2013
Excellent Product I've taken this product for several years now and it definitely works. I always notice a difference when I don't use it. I highly recommend it. July 29, 2013
Great for athletes A great product for endurance. July 17, 2013
Swanson L Arginine is one of the better products I have ever used. I have been using it for a while now and I am extremely happy with it. I take L Arginine for improve circulation and YES, it works. July 8, 2013
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