NOW Foods Arginine Citrulline 500/250, 120 Capsules Features : Now Foods Arginine and Citruline are two amino acids that are integral to protein metabolism and utilization, as well as to the maintenance of muscle tissue. Both Now Foods Arginine and Citruline are key intermediates in the urea cycle, where they participate in the detoxification of ammonia via the production of urea. Now Foods 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 Now Foods Citrulline along with Arginine helps maintain nitrogen balance better than supplementation with Arginine alone. Now Foods Arginine and Citruline are two amino acids that are integral to protein metabolism and utilization, as well as to the maintenance of muscle tissue. Both Now Foods Arginine and Citruline are key intermediates in the urea cycle, where they participate in the detoxification of ammonia via the production of urea. Now Foods 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 Now Foods Citrulline along with Arginine helps maintain nitrogen balance better than supplementation with Arginine alone. Ingredients: L-Arginine (Free-Form), L-Citrulline (Free-Form). 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. Direction: 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. Safety 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. Do Not Eat Freshness Packet. Keep in Bottle. Store in a cool, dry place. Supplement Facts: Now Foods Arginine and Citrulline 500/250 - 120 Capsules Supplement Facts Serving Size: 2 Capsules Servings Per Container: 60 Amount Per Serving %DV L-Arginine (Free-Form) 1 g * L-Citrulline (Free-Form) 500 mg * *Daily Value Not Established 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. Legal Statement: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease. Our shipping: Most orders paid by 11 am (EST) ship the same day. Holidays add one day.