Nutricost's high quality L-Arginine + L-Citrulline complex delivers 750mg per capsule of these amino acids. Each capsule contains an ideal blend of 500mg of l-arginine and 250mg of l-citrulline. Bottles are available in both 120 and 240 capsule amounts. This supplements is non-gmo, gluten free, and 3rd party tested for safety and quality. Only What You Need, Nothing You Don't! We've simplified our entire philosophy down to that single concept. This motto is what drives us to find the highest quality sources of the purest ingredients for each supplement we offer. From single ingredients to our simple formulations for targeted effects, each of our supplements stays clear and simple with what they provide.