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NOW Foods

L-Arginine Powder

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In Stock
1 lb Pwdr
Other Sizes:
Gluten Free
  • 100% pure

  • Pharmaceutical grade

  • Free form
L-Arginine is a conditionally essential basic amino acid involved primarily in urea metabolism and excretion as well as DNA synthesis. This product contains no sugar, salt, starch, yeast, wheat, gluten, corn, soy, milk, egg, shellfish or preservatives.

Product Label

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.

Other ingredients: None.

SUGGESTED USAGE: As a dietary supplement, take 2 level teaspoons (4.6 g) daily as needed in juice or water, preferably on an empty stomach.

Warning: 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.

This product is sold by weight not volume.

Store in a cool, dry place.

  • Contains no sugar, salt, starch, yeast, wheat, gluten, corn, soy, milk, egg, shellfish or preservatives.
  • NOW┬« L-Arginine is Pharmaceutical Grade.
  • GMP Quality Assured.

Terms and Ingredient Definitions

NOW Foods L-Arginine Powder Reviews

Summary of Customer Ratings & Reviews

Customer Ratings & Reviews

L-Arginine Powder 4.1 5 13 14
Taste is nasty! I read the reviews and thought surely i can take this stuff. The large L-Arginine 1000 mg pills are so huge they either get stuck half way down or I can feel it for a long time after. I thought the powder would be handy but have not figured out a way to disguise the taste yet. The smell is very nasty and the taste is also pretty bad. I do hope i can figure something out to be able to use it. April 5, 2014
Great Value This product is a good value. Tastes bad, but I mix it with Vitamin C powder and instant lemonade. October 12, 2013
Five stars all around I've been using this stuff as a workout supplement for over a year now, and I've found it highly effective, high quality, and high value at Swanson's price. A truly valuable substance. September 12, 2013
L-arginine I had purchased L-arginine through another company but at three times the price. I was plesantly surprised at the effectiveness of the product I purchased from Swansons. Some people might have a hard time with the taste, however I mixed it my Vitamin C, and emergen-z packet and it goes down pretty good. I find that I sleep better at night, when I didn't before. August 22, 2013
Good Ariginine I've used other products, and this one fits the bill. Price and quantity. I take this every morning 3 grams. May 26, 2013
Heart and Vascular? Argenine, an essential Amino Acid, is great for keeping heart and blood vessels in good shape -- it's the precursor to Nitric Oxide, which the body make! This Argenine is partilarly useful in thar one controls in what food they will use it. VERY Handy! May 24, 2013
how to make it taste better I mix the Swanson 100% Pure Vitamin C Powder to this L-Arginine Powder and the bad taste is gone January 21, 2013
Great Product To all of the guys out there complaining about the taste.... Three times a day I get a bottle of water and put a packet of crystal light lemonade powder in it....I then add two (2) teaspoons of l-arginine to the bottle....mix and drink it down. It's not bad this way....and it helps knowing how effective this stuff is in making me feel better and perform MUCH better. It doesn't hurt that the ladies notice another benefit, also. December 28, 2012
make it taste tolerable Before I bought this I did an internet search for how to make l-arginine powder taste better. I know it tastes bad and the only good stuff was expensive from GNC. So here is the trick. mix the powder with 1-2 oz of a colored berry juice and enough water to get a good disolve of the powder, I use cramberry. Then stir, the nice berry color will change to black sludge. Then add lemon juice (buy cheap stuff you will be using alot) until the color changes back. It takes me 2 -2.5 oz of lemon juice. The color won't be exact more like a creamy version of the original color. You don't need to sweeten it, but you can. What has happened is the akaline of the powder has been neutralized with the acid ot the juice. November 2, 2012
good purchase I find this is the best price so far, the taste isn't like eating cake but certainly isn't as bad as I've read, I just mix it with some water and down it, I will order this again! August 7, 2012
Tastes SO BAD I could NOT use! I will normally find a way to get vile tasting things down, if they are beneficial. I tried everything, even just mixing with small amount of liquid and following with a strongly flavored "chaser". NOTHING is adequate to make this tolerable... I will take it as a handful of capsules in future. Unless you don't mind taking really awful stuff regularly, try another form. I wasted the money I paid for this. June 7, 2012
Yes the taste is challenging but all L Arginine powders, no matter the brand, taste bad. If you're serious about getting the health benefits from this supplement, you'll figure out a way to get it down. I mix 2 teaspoons in a couple of ounces of water and just chug it down, then quickly drink another glass of plain water. I do not experience an aftertaste or any other negative side effects. It does what it promises and this brand is a good buy. June 5, 2011
not very good they should do something about the taste , its bad , mixed it with a couple of differant liquids and it still tastes bed April 19, 2011
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Countries with restrictions on this product:

  • Japan

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