Beta-alanine is a naturally occurring amino acid & is the rate-limiting precursor of carnosine. Beta- Alanine is a non essential amino acid; within the body the combination of beta-alanine & Histidine, which are both naturally occurring in muscle tissue, produce Carnosine, a muscle buffering substance which nullifies the unwanted acidosis caused from repeated bouts of high intensity exercise. Primary Beta-Alanine is designed for strength trainers & power athletes, & those engaged in high-intensity short-duration exercise.