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Now Foods, Sports, L-Arginine Powder, 1 lb (454 g)

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$17.51 (44)
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In Stock
  • Expiration Date: May 2019
  • Shipping Weight: 1.42 lbs (0.64 kg)
  • Product Code: NOW-00210
  • UPC Code: 733739002105
  • Package Quantity: 1 lb (454 g)
  • Dimensions: 6.6 x 3.6 x 3.6 in, 1.2 lbs (0.54 kg)
Product Overview


  • 100% Pure - Free-Form
  • Pharmaceutical Grade
  • A Dietary Supplement
  • GMP-Quality Assured

NOW L-Arginine is Pharmaceutical Grade.

L-Arginine is a conditionally essential basic amino acid involved primarily in urea metabolism and excretion, as well as DNA synthesis.

Suggested Use

As a dietary supplement, take 2 level teaspoons (4.6 g) daily as needed in juice or water, preferably on an empty stomach. Consider taking these product other NOW products: L-Citrulline, P-5-P and AAKG.

Other Ingredients


Contains no sugar, salt, starch, yeast, wheat, gluten, corn, soy, milk, egg, shellfish or preservatives.


This product is sold by weight not volume.

Store in a cool, dry place.

This supplement should be avoided by persons with glaucoma or herpes simplex unless otherwise prescribed by a physician. Do not use if you have had a myocardial infarction or have established coronary artery disease.

Supplement Facts
Serving Size: 2 Level Teaspoons (4.6 g)
Servings Per Container: 98
  Amount Per Serving % Daily Value
L-Arginine (Free-Form) 4.6 g (4,600 mg) *
*Daily Value not established.
iHerb Customer Reviews

Great Product

Posted by 4618654251969690359 on Dec 03, 2016

Been using less than a month and I can feel my blood circulation improved , BP decreased from 150/96 to 130/82. Improve energy Very good product and will keep using it.

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Posted by 4685594338256551493 on Aug 26, 2016

Poor. Ineffective. Useless. Waste of money. Waste of time. Don't bother.

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Taste awful

Posted by 5124205420642478582 on Jul 13, 2016

Its bitter and have a fishy smell, its too hard to drink just with water, will try again with juice tomorrow.

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Very good quality.

Posted by 5682787750457333279 on Jun 26, 2016

I have used this for a long time, and i am pleased. I can recommend.

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4g Arginine + 1g Citrulline

Posted by 5106526984906807055 on Jun 24, 2016

Luis Ignarro, who discoverd the Nitric Oxide process, suggest to take maxium 6g Arginine a day wiht 1/4 citrulline better on a empty stomach. I noticed wonderfull results on my alertness, libido and muscle consistency. I take every day.

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