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Now Foods, L-Citrulline, Pure Powder, 4 oz (113 g)

By Now Foods

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  • Product Code: NOW-00214
  • UPC Code: 733739002143
  • Package Quantity: 4 oz (113 g)
  • Dimensions: 2.3 x 2.3 x 4.4 in, 0.3 lbs (0.14 kg)
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Product Overview

  • Supports Protein Metabolism
  • Healthy Immune System Function
  • GMP Quality Assured
  • A Dietary Supplement
  • Vegetarian/Vegan

Citrulline is a non-essential amino acid that is an important intermediate in the urea cycle, functioning along with other amino acids to rid the body of ammonia, a byproduct of protein metabolism. Citrulline also plays an important role in the healing process and in the maintenance of a healthy immune system.

Suggested Use

As a dietary supplement, take 1/4 - 1/2 level teaspoon 1 to 2 times daily between meals.

Other Ingredients


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.


Caution: For adults only. Consult physician if pregnant/nursing, taking medication (especially blood pressure medications and nitrates or other vasodilating drugs), or have a medical condition (especially abnormal blood pressure). Keep out of reach of children.

Do not eat freshness packet enclosed.

This product is sold by weight not volume.

Store in a cool, dry place after opening.

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Supplement Facts
Serving Size: 1/2 Level Teaspoons (1.5 g)
Servings Per Container: about 75
  Amount Per Serving % Daily Value
L-Citrulline 1.5 g (1,500 mg) *
* Daily Value not established.

iHerb Customer Reviews

5 Stars
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1 Stars

Excellent results, along withy L-Arginine Powder

Posted by Reviewer1442037 on May 05, 2010

Based on Dr. Ignarro's book, NO more Heart Disease, this combo has the power to increase Nitric Oxide, thereby creating healthier endothelial lining in the vascular system. I have been using a modest amount for almost one month - with wonderful results in BP readings. I mix it in applesauce. I plan to slowly increase the amount over time, but so far, for me, it didn't take much (1/4 tsp along with 1 tsp. L-Arginine) to get dramatic results, plus the peace of mind that comes along with it.

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15 people found the following review helpful

Pleased with Product

Posted by Reviewer1204839 on Jan 17, 2012

I am 95 years old and feel this product helps me still be able to live a productive life.

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13 people found the following review helpful

For Mitochondrial Disorder

Posted by Reviewer2058103 on Nov 04, 2010

My wife suffers from severe muscle degradation caused by a form of the Mitochondrial Disorder, we are told by the neurologists. It is likely due to some genetic factors being expressed after she had a fall. She had tried L-Carnitine but with no positive effects and adverse side effects. This product (half teaspoon per day in lemon-honey-luke warm water mixture) seems to agree with her well with no side effects at all. Someone without her ailment could certainly see a marked improvement in their muscle strength, I believe. We recommend trying this out for that reason. See my review for Now Foods L-Arginine Powder which she also takes 2 teaspoons per day in the same mixture.

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7 people found the following review helpful

It lowers my husband's blood pressure

Posted by ShirleyDabbs on Apr 23, 2013

I bought this product for my husband. His blood pressure has been out of control. He takes this along with L-Arginine. This product helps him keeping his BP within the safe zone. Last time I checked him, it was 122/79, it used to be way over 170/130. It is in pure powder form, and tasteless. If you mix it with water, it disolves easily. In additions to keeping my husband's BP low, it also helps him building muscles. He said that he does not even need to work out half as hard as before to gain muscles. Overall, this product is benefiting him greatly, and he intends to stay on it.

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5 people found the following review helpful

L-Citrulline Powder

Posted by Reviewer3022151 on Jan 01, 2009

I bought this on recommendation of a nobel-prize winning doctor. Supposed to help control blood pressure when used with L-Arginine. I have only been using it for a couple weeks. Packaging good, delivery prompt. Decent price. No complaints.

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4 people found the following review helpful

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