Sustained Plus Immediate Release L-Arginine

Sustained Plus Immediate Release L-Arginine from Doctor's Best® delivers the amino acid in a bilayer tablet, with two tablets providing 500 mg of sustained release and 500 mg of immediate release L-arginine. This formula allows for enhanced blood levels of this nutrient. Sustained Plus Immediate Release L-Arginine tablets are specifically manufactured to immediately increase blood levels of L-arginine and then to sustain this beneficial increase continuously over an 8-hour period. L-arginine has been shown to support the cardiovascular system, promote heart function and enhance healthy circulation throughout the body through its conversion to nitric oxide. Research suggests L-arginine supplementation may also have positive benefits on athletic performance. Vegan. Non-GMO. Gluten free.