Cellucor COR-Performance B-BCAA features clinically studied doses of BCAAs, Beta Alanine, Citrulline and HICA, which are suggested to help athletes build muscle, sustain maximum output, and recover from intense training and sports activities. Beta Alanine is known for the tingling sensation most users feel after consumption. Cellucor COR-Performance B-BCAA uses a clinically studied 3.2g dose of Beta Alanine to support maximum results and a great activation feeling that lets you know the product is kicking in. The vast majority of Beta Alanine users report a slight tingling sensation after ingestion. If you dont feel the tingles, dont worry, the product is still hard at work to maximise your workout.