HERBOLOID L-ARGININE 800 + L-CITRULLINE 400 Fitness, Heart & Blood Supplement combines 2 Extra Strength Nitric Oxide Boosters to promote All-Day Energy, aid Performance & help Post-Workout Recovery. The Amino Acid Blend supports improved Blood Flow & Heart Function. HERBOLOID blends are Made in the USA, 3rd Party Tested & the Highest Quality. Boost your Mood, stay Fit & feel Amazing each day with HERBOLOID! L-Arginine and L-Citrulline are two Amino Acids bundled into a single Powerful Herboloid Supplement. L-Arginine is an essential factor in Muscle Metabolism and is a precursor for Nitric Oxide that promotes Increased Circulation by relaxing the blood vessels. L-Citrulline helps the body Get Rid of Ammonia, a by-product of exercise, and it helps enable the body to Recover After a Workout. Herboloid’s Amino Acid supplement is a great product to be taken after a workout and enhances your recovery rate because of improved Blood Circulation.