Beta-alanine is a non-essential amino acid used by muscle cells to synthesize carnosine. Carnosine is a dipeptide (beta alanine + histidine) that acts as a buffer to neutralize hydrogen ions produced during strenuous exercise, helping to maintain optimum muscle pH.
Clinical studies have shown that Beta-alanine supplements can increase the level of carnosine and delay muscle fatigue.
Carnosine has important physiological functions as an important antioxidant. Regarding exercise, the increase in the concentration of carnosine is very relevant, taking into account that it improves the sensitivity to calcium in muscle fibers and is also used in the muscle cell as a buffer to control intracellular pH.