L-Citrulline Malate is a powerful pump-boosting amino acid that helps support L-arginine and Nitric Oxide Production.* Skeleton L-Citrulline Malate is 100% plant-based, made through a patented fermentation process, and is banned substance tested. It’s unflavored and easy to add to your pre-workout for even more pumps. https://skeletonnutrition.com/products/l-citrulline-malate?variant=46465859911918