Laperva L-arginine L-citrulline Beta-Alanine is a wonderful and comprehensive combination that makes it the best choice for anyone wanting to improve energy levels as Laperva contains the most effective trio (arginine, citrulline and beta-alanine) related to the following: 1) Increasing performance levels during workouts 2) Promote blood pumping and muscle nutrition 3) Increased capacity and durability 4) Supporting male sexual desire.