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Now Foods, L-Arginine Powder, 1 kg (2.2 lbs)

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In Stock
  • Expiration Date: Jun 2019
  • Shipping Weight: 2.96 lbs (1.34 kg)
  • Product Code: NOW-00211
  • UPC Code: 733739002112
  • Package Quantity: 1 kg (2.2 lbs)
  • Dimensions: 5 x 5 x 6.8 in, 2.5 lbs (1.13 kg)
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Product Overview


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

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 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. Please recycle.

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: 217
  Amount Per Serving % Daily Value
L-Arginine (Free-Form) 4.6 g (4,600 mg) *
* Daily Value not established.
iHerb Customer Reviews
fountain of youth
I put one teaspoon of Now Foods Branched Chain Amino Acids Powder in about four ounces of reverse osmosis purified water. (It takes about four hours for the powder to dissolve without stirring.) At bedtime, I add 4 teaspoons of Now Foods L-Arginine Powder and one teaspoon of Country Life Iron Tek Essential Glutamine Powder and stir gently until it dissolves. (If the ingredients are combined earlier in the day, they will produce unwanted compounds in solution. The mixture doesn't have a pleasant taste, but it cannot be sweetened and still have the desired effect. It must be taken immediately before sleep, and at least two hours after eating ... again ... there can be no sugar in the bloodstream.) While I dream, the amino acids cause my pituitary gland to produce human growth hormone at near youthful levels. I eat a diet suited to my metabolism, and I exercise. I am fifty-five years old, and I have been taking it in different forms for about four years, and the only side effects are more energy, weight loss, a Viagra-type effect, and my hair has gotten darker. (My hair was almost completely white. It takes about 2 months to produce a noticeable change in hair color.) I would recommend starting at half dosage and working up to a full dosage. I recommend that women use about half of a male dosage. As with anything ... if you have health problems ... be wise, and ask your doctor if it is safe for you. (Body builders can take the same mixture thirty minutes before lifting to build muscle mass more quickly.)
Feb 03, 2010


Posted by 5059445749598471369 on May 28, 2014


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Dont workout without it!

Posted by Reviewer3050708 on Apr 12, 2014

Excellent for adding that pump factor to your lift.... great supplement for blood flow

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Posted by Reviewer2287123 on Jan 07, 2014

great prices. fast service. highly recommended

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Good, but mix with something sweet.

Posted by Reviewer1280571 on Aug 08, 2012

Good for nitric oxide, but Citrulline Malate is better. Combine 10 grams arginine with 6 grams citrulline malate and watch the benefits begin. Better pumps .....everywhere. More energy, lower blood pressure, better workout recovery.

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Terrible taste, but good effect!

Posted by 4843721208839192752 on Jun 01, 2012

The taste is really really bad, but so is other L-arginine powders too. But it keept what it promises, I had more power at the gym, and good pump with many bloodvessels popping :)

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