Jarrow Formulas® Arginine-Citrulline Sustain™ is a synergistic combination of two amino acids to support nitric oxide (NO) production, blood flow and cardiovascular health.* L-Citrulline largely converts to L-Arginine, increasing circulating and blood vessel levels of L-Arginine for NO production.* Arginine-Citrulline Sustain™ provides these amino acids to the body over an 8 hour period.*
Take 2 tablets 1 to 2 times per day on an empty stomach prior to meals, or as directed by your qualified healthcare professional.

Serving Size: 2 Tablets

Amount Per Serving
Vitamin C (as Calcium Ascorbate) ... 10 mg
L-Arginine (Free Base) ... 500 mg
L-Citrulline (Free Base) ... 500 mg

Other Ingredients: Cellulose, silicon dioxide, magnesium stearate (vegetable source) and a food-grade coating. 
If you have a medical condition (especially hypotension or herpes), are pregnant, lactating, trying to conceive, under the age of 18, or taking medications, consult your healthcare professional before using this product.