Dietary Supplement- Supports Protein Metabolism- Helps Maintain Muscle TissueArginine 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.Dietary ConsiderationsWheat FreeDairy/ Milk FreeGluten FreeSoy FreeYeast FreeSugar FreeStarch FreePreservative FreeSalt FreeCorn FreeEgg FreeShellfish FreeServing Size:2 CapsuleServings Per Container:60 Amount Per ServingL-Arginine (Free-Form) 1gL-Citrulline (Free-Form)500mg Other ingredients: Gelatin (capsule), Silica, Cellulose, Stearic Acid (vegetable source), Magnesium Stearate (vegetable source) SUGGESTED USAGE: As a dietary sup ple ment, take 2 capsules 1 to 3 times daily as needed, preferably with juice or water on an empty stomach, before exercise or at bedtime.Contains no sugar, salt, starch, yeast, wheat, gluten, corn, soy, milk, egg, shellfish or preservatives. Do Not Eat Freshness Packet. Keep in Bottle. Store in a cool, dry place. Please Recycle.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.