Primaforce Citrulline Malate contains pure citrulline malate powder without any junk fillers or additives. Citrulline malate is a compound made from the non-essential amino acid l-citrulline and malic acid. ItÕs an important cofactor in the production of arginine, which has been shown to relax blood vessels, improve blood flow and increase production of nitric oxide in the blood. Citrulline malate has also been shown to improve muscular endurance and recovery in trained individuals by increasing the rate of ammonia clearance during exercise. This lowers muscular acidity, reduces lactic acid and improves energy production at the cellular level. Research suggests that citrulline malate supplementation can help bodybuilders, athletes and others looking to improve exercise performance as well as overall cardiovascular health