Branched Chain Amino Acids (BCAAs) are Leucine, Isoleucine & Valine. They are considered to be essential amino acids because humans could not survive unless they were present in their diet.BCAAs are required to maintain lean tissue & studies have shown that they help to preserve your stores of glycogen. BCAAs also prevent tissue breakdown during training. Unlike other amino acids BCAAs are not metabolised in the stomach & are instead metabolised directly in the muscle. This unique quality means that they build lean tissue & stop catabolism. These unique amino acids (Leucine, Isoleucine & Valine) cannot be synthesised by your body so they are essential to your growth. Don't like the taste of BCAA powder? Why not try our BCAA+ Tablets. You can increase the effectiveness of BCAAs by consuming 10mg of Vitamin B6 with every 10g of BCAA.