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Source Naturals, L-Arginine, Free Form, 500 mg, 100 Capsules

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In Stock
  • Expiration Date: Aug 2019
  • Shipping Weight: 0.3 lbs (0.14 kg)
  • Product Code: SNS-01687
  • UPC Code: 021078016878
  • Package Quantity: 100 Capsules
  • Dimensions: 2.4 x 2.4 x 4.3 in, 0.25 lbs (0.11 kg)
Product Overview


  • Amino Acid Supplement
  • Promotes Increased Circulation

L-Arginine is a crystalline, free-form amino acid. It is an important factor in muscle metabolism and works to transport, store, and excrete nitrogen. It is a precursor for nitric oxide, which promotes increased circulation by relaxing blood vessels.

Suggested Use

2 capsules, 1 to 3 times daily between meals.

Other Ingredients

Gelatin (capsule), dibasic calcium phosphate, colloidal silicon dioxide, and magnesium stearate.

Hypoallergenic: Contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.


Store in a cool, dry place.

Note: Consult your health care professional prior to using this product if you are being treated for any pre-existing conditions or are taking prescription medications, such as heart medications including nitroglycerin or any erectile dysfunction medications. If you are pregnant, may become pregnant, or are breastfeeding, consult your health care professional before using this product.

Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.

Supplement Facts
Serving Size: 2 Capsules
Servings Per Container: 50
  Amount Per Serving %DV
Calories 5  
Calcium 47 mg 5%
L-Arginine 1 g
†Daily Value not established.
iHerb Customer Reviews

L arginine

Posted by 4844199530070234026 on Dec 26, 2016

I like it.

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wonderful product

Posted by BeautyWealthLovelyFamily on Nov 22, 2016

Very good

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Libido Boost

Posted by 4742404781760087293 on May 03, 2016

I took this to help with ED. Although I have a history of depression and thought that my problem was related to my mental tiredness and previous meds etc. I was pleasantly surprised to find that this brought back the mojo. My wife was also surprised (pleasantly, I hope!).

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have not taken yet

Posted by 4729379307298409412 on Apr 07, 2015

have not opened yet

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Menopause Support

Posted by 5485951632908139042 on Dec 27, 2013

Ladies, this is great for vaginal dryness. I highly recommend it! I take half a tablet in the morning and half a tablet of the Source Naturals L-Lysine 1000mg in the evening to prevent cold sores, which you can get from L-Arginine. It works brilliantly, as the L-Lysine helps me sleep too.

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