This 100% Beta-Alanine Amino Acid powder is a completely pure, gluten-free and vegan source of the amino acid, beta-alanine. What is Beta-Alanine? Beta-alanine is a non-essential amino acid meaning it can be produced in the body so is not essential to include in your diet but can be taken as a supplement to a balanced diet to increase the amount of beta-alanine available in the body. Beta-alanine is different to most other amino acids, because it isn’t used by the body to create proteins. Instead, it plays an important role in the production of carnosine which is stored in skeletal muscle and helps to reduce the build-up of lactic acid in muscles during exercise.