β-Aminobutyric Acid (beta-alanine) is produced by chemical synthesis or microbial fermentation.
This yields a white crystalline powder with ≥99% purity. As the rate-limiting substrate for muscle carnosine synthesis, β-alanine supplementation (typically 3.2–6.4 g/day) elevates intramuscular carnosine, buffers lactic acid during high-intensity exercise, and extends time-to-exhaustion in performance athletes.