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Now Foods, L-Arginine, 500 mg, 250 Capsules


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Now Foods, L-Arginine, 500 mg, 250 Capsules

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Now Foods, L-Arginine, 500 mg, 250 Capsules

In Stock
  • Expiration Date: 04/2020
  • Shipping Weight:
    0.53 lbs
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  • Product Code: NOW-00031
  • UPC Code: 733739000316
  • Package Quantity: 250 Capsules
  • Dimensions:
    5.3 x 3 x 3 in, 0.45 lbs
    Switch to Metric units
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Product Overview


  • Non-GMO
  • A Dietary Supplement
  • Amino Acids
  • Family Owned Since 1968
  • GMP Quality Assured

Amino Acid

  • Conditionally Essential Amino Acid
  • Nitric Oxide Precursor

L-Arginine is a conditionally essential basic amino acid involved primarily in urea metabolism and excretion, as well as DNA synthesis and protein production. It is an important precursor of Nitric Oxide (NO) and thus plays a role in the dilation of blood vessels.

Suggested Use

Take 2 capsules twice daily as needed. Take between meals or at bedtime with a carbohydrate drink to facilitate absorption.

Other Ingredients

Gelatin (capsule), magnesium stearate (vegetable source) and silica.

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

The L-Arginine used in this product is Pharmaceutical Grade.

Natural color variation may occur in this product.


Store in a cool, dry place after opening.

Please recycle.

Caution: For adults only. Consult physician if pregnant/nursing, taking medication, or have a medical condition. 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. Keep out of reach of children.

Supplement Facts
Serving Size: 2 Capsules
Servings Per Container: 125
  Amount Per Serving % Daily Value
L-Arginine (Free-Form) 1 g (1,000 mg) *
* Daily Value not established.
iHerb Customer Reviews

It works

Posted by iHerb Customer on Oct 24, 2017 | Verified Purchase

I use it in conjunction with L- Carnitine, I have noticed I sweat more while doing cardio workout

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Definate benifits

Posted by iHerb Customer on Oct 19, 2017 | Verified Purchase

Gives an amazing energy boost, mental focus and clarity, legs don't fatigue during extended exercise. initially it reduced my appetite but that reduced with time. Also noticed some increase in erectile function.

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L- for LOVE

Posted by iHerb Customer on Aug 20, 2017 | Verified Purchase

Love-Arginine Love-Arginine Love-Arginine Love-Arginine Love-Arginine

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Energy and stay slim

Posted by iHerb Customer on Aug 08, 2017 | Verified Purchase

Have been using this product for ages, gives me energy and I stay slim without a diet

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Posted by TryMe on Jul 11, 2017 | Verified Purchase

In my opinion everyone should know about L-Arginine. Diseases cannot manifest themselves in a clean body. Detoxification is therefore important for many people. Among many functions this amino acid has a chelating effect on toxins making it easier for the body to get rid of them. It had such a profound positive effect on my overall health that I consider L-Arginine my "wow-substance". I always have L-Arginine in my cupboard. In my opinion no one should take considerable amounts of the nutrients involved in the livers phase 1 detoxification without taking the sulfur containing amino acids involved in the livers phase 2 detoxification. Everyone should know about how the liver detoxifies. For, if you disregard phase 2 detoxification then it can potentially have a very detrimental effect on both your physical and mental health.

Thanks for your feedback!