Beta alanine the primary goal of beta-alanine supplementation is to increase carnosine content in the skeletal muscle thereby enhancing intracellular buffering capacity, enabling a greater tolerance of sustained anaerobic activity.. The net result of this is of course greater muscle gain. Beta-alanine enhances performance by increasing exercise capacity and decreasing muscle fatigue. It also has antioxidant, immune-enhancing and anti-aging properties. The benefits of L-arginine are derived from its roles in protein synthesis and serving as a precursor to nitric oxide, which is a good vasodilator. L-arginine helps with muscle growth because its presence is needed for the synthesis of most proteins. When the size of a muscle increases, L-arginine sends a signal to muscle cells. Being a precursor for nitric oxide, L-arginine promotes endurance and conditioning. When nitric oxide is released, it expands the blood vessels by relaxing the muscles of their walls. . The increased blood flow means that oxygen and nutrients are sent to your muscles and for longer amounts of time. This can may help less muscle damage, increase recovery, and provide optimal performance.