What Is L-Citrulline DL-Malate 2:1 Powder L-citrulline DL-malate 2:1 powder is a compound consisting of citrulline and malic acid. L-citrulline is an amino acid that is produced naturally by the body and is found in the heart, muscles, and brain tissue. Malic acid is a naturally occurring acid that is found in fruits. L-citrulline DL-malate 2:1 powder is most often used by athletes and bodybuilders to help with endurance and recovery. This product is a 2:1 ratio of citrulline and malate. L-Citrulline DL-Malate 2:1 Powder Benefits L-citrulline DL-malate 2:1 powder is commonly taken as part of a preworkout regimen and may also help with recovery after hard exercise. It helps boost energy, and it supports circulation and the cardiovascular system.* L-citrulline DL-malate 2:1 powder also promotes heart health, fortifies the immune system, and may help aid libido and sexual health.*