Beta-Alanine is a non-essential amino acid, meaning that our body can synthesize this amino acid on its own. Together with L-histidine, beta-alanine forms carnosine. Carnosine is extremely important for athletes as it promotes endurance, prevents muscle acidification during training, and reduces fatigue. Beta-alanine promotes strength and muscle building. It is highly popular among cyclists, triathletes, marathon runners, bodybuilders, and swimmers. Note: Can have side effects such as tingling on the skin, not dangerous, just uncomfortable.