Beta Alanine 100% pure beta alanine powder in a convenient, mixable form, key to production of carnosine in skeletal muscle & an ideal pre-workout ingredient. Beta alanine is a naturally occurring, non-essential amino acid that’s a popular pre-workout supplement. This 100% pure beta alanine powder is ideal for mixing into your regular pre-workout formula for an extra boost of amino acids. Beta alanine combines with histidine to produce carnosine, one of the most concentrated amino acids in muscle.