Beta-Alanine Powder. 300 grams. -Helps Delay Muscle Fatigue- Beta Alanine is a nonessential amino acid that is used by muscle cells to synthesize Carnosine. Carnosine is a dipeptide (Beta-Alanine plus Histidine) that functions as a buffer for the hydrogen ions (acid) produced during strenuous exercise, thus helping to maintain optimum muscular pH.** Usual use is 2-4g/day, divided in 2 or more doses.