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Brand: Now Foods     Categories: Amino Acids / Circulation/Blood Support / Heart / L Arginine / L Citrulline / Nitric Oxide


Arginine & Citrulline 500mg/250mg











Now Foods

Arginine & Citrulline 500mg/250mg







Arginine & Citrulline 500mg/250mg

Arginine & Citrulline 500mg/250mg  120  Capsule

Supplement Facts

Serving Size: 2 Capsules

Amount per
% Daily*

L-Arginine (Free-Form)




L-Citrulline (Free-Form)




**Daily value not established.

Suggested Usage: As a dietary supplement, take 2 capsules 1 to 3 times daily as needed, preferably with juice or water on an empty stomach, before exercise or at bedtime. Consider taking this product in combination with NOW® L-Norvaline, P-5-P and AAKG.

Other Ingredients: Gelatin (capsule), Silica, Cellulose, Stearic Acid (vegetable source) and Magnesium Stearate (vegetable source).

Contains no: sugar, salt, starch, yeast, wheat, gluten, corn, soy, milk, egg, shellfish or preservatives.

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.


Arginine and Citrulline are two amino acids that are integral to protein metabolism and utilization, as well as to the maintenance of muscle tissue. Both are key intermediates in the urea cycle, where they participate in the detoxification of ammonia via the production of urea. Arginine that has not been converted to urea enters general circulation where it is distributed to various tissues and metabolized for other uses such as protein synthesis. Scientific studies have shown that supplementing Citrulline along with Arginine helps maintain nitrogen balance better than supplementation with Arginine alone.*




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*Statements on this site have not been evaluated by the Food and Drug Administration. 
Products on this site are not intended to diagnose, treat, cure, or prevent any disease. 
Prices are subject to change at anytime and without notice. 
The majority of the product information has been reprinted from the manufacturer.