both five grams of L-arginine in line with day or a placebo. After 6 weeks, more men in the L-arginine institution showed development in comparison to those taking the placebo. L-arginine is concept to Vialis Male Enhancement decorate the action of nitric oxide resulting in blood vessels in the penis dilate, growing blood flow, which might also assist keep an erection. 3. Congestive Heart Problems - According to a 2000 take a look at posted in Clinical Cardiology, L-arginine .