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Jarrow Formulas, Arginine, 1000 mg, 100 Tablets

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In Stock
  • Expiration Date: Sep 2017
  • Shipping Weight: 0.53 lbs (0.24 kg)
  • Product Code: JRW-15036
  • UPC Code: 790011150367
  • Package Quantity: 100 Tablets
  • Dimensions: 4.8 x 2.6 x 2.6 in, 0.45 lbs (0.2 kg)
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Product Overview


  • Pharmaceutical Grade L-Arginine
  • Supports Nitric Oxide and Protein Synthesis
  • Dietary Supplement
  • Vegan
  • EasySolv

L-Arginine is an amino acid that plays an important role in several important pathways, including the synthesis of proteins, the production of creatine phosphate, needed to produce ATP, and the synthesis of nitric oxide, a secondary messenger involved in blood flow.

Suggested Use

Take 1 tablet 1 to 2 times per day or as directed by your qualified healthcare professional.

Other Ingredients

Cellulose, stearic acid (vegetable source), magnesium stearate (vegetable source), silicon dioxide and a food grade coating.

No wheat, no gluten, no soybeans, no dairy, no egg, no fish/shellfish, no peanuts/tree nuts.

Suitable for vegetarians/vegans.


Note: Color of product naturally varies in color.

Note: If you have a medical condition (especially hypotension or herpes), are pregnant, lactating, trying to conceive, under the age of 18, or taking medications (especially for blood pressure), consult your healthcare professional before using this product.

Keep out of the reach of children.

Supplement Facts
Serving Size: 1 Tablet
Servings Per Container: 100
  Amount Per Serving % DV
L-Arginine (from L-Arginine Hydrochloride) 1000 mg *
* Daily Value not established.
iHerb Customer Reviews
Good but can be better as well!
L-arginine is a common amino acid in protein food and is the precursor to nitric oxide. Nitric oxide is a powerful vasodilator and when taken in high enough doses, it is known to be able to boost athletic performance (commonly used by gym goers), lower high blood pres sure naturally, immune booster, aids in weight los s by increasing muscle to fat ratio, keeping the skin smooth, anti aging, build new bones, increase Human Growth Hormone, anti cancer, improve wound healing, detoxification, reduce mental stres s, aid in dysfunction in men and improve performance. The amounts of arginine present in food are normally insufficient to show benefits as shown therefore it will be neces sary to take L-arginine supplement in order to achieve the results required. Though the product recommends 1 tablet (1g each) 1-2 daily, I find that 1-2 g daily is too low to able to feel any results. Generally, you will need 4-6 g daily over some time to feel the results. Note that taking too much at the same time is likely to cause diarrhea as well. In my case, 7-8 tablets at the same time seem to cause loose stools and will not happen if split into two different timings. An important point is that to take the tablets on empty stomach because if taken with food, it will compete with other amino acid for absorption thus reducing the actual amount absorbed. The tablets are suitable for vegetarians and are large so some people might have difficulty swallowing. In this case, it is best to take capsules (more expensive than tablets) instead.
Nov 17, 2013

Great addition

Posted by DaniellaMeans on Oct 16, 2016

Great addition to my diet for overall performance and well being.

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Excellent product

Posted by 4978627159175762972 on Sep 07, 2016

Great product that works !

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Posted by 5466824696907734271 on Aug 29, 2016

My hubby and I had no possitive results from this product

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Inexpensive and Effective---

Posted by Reviewer1826598 on Aug 12, 2016

I have been able to bring my systolic blood pressure down 15 points as measured via electronic measuring device and compared with before taking arginine (a vaso-dialator). This is, of course, not a controlled experiment, but can easily be repeated by anyone with a blood pressure measurement device.

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Posted by 5043187207893113966 on Aug 02, 2016

feel difference from the first pill

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