What are BCAA 1500's? BCAA 1500's contain 3 essential amino acids that make up Approx. 35% of muscle protein. Each tablet contains 1500mg of the amino acid L Leucine 750mg of the amino acids L isoleucine & L Valine & 18mg of Vitamin B6. Benefits of BCAA 1500 BCAAs are not like other amino acids as they are not metabolised in the stomach & are instead metabolised directly in the muscle. As a source of vitamin B6 BCAA 1500’s can contribute to immune system functioning protein & glycogen metabolism & the reduction of tiredness & fatigue. BCAA 1500's contain the 2:1:1 ratio of L Leucine L Isoleucine & L Valine whilst also containing the synergistic ingredient Vitamin B6. BCAA 1500’s are also free from artificial colours & preservatives yeast gluten starch & lactose. Who are BCAA 1500's suitable for? Generally BCAA 1500’s are taken by active individuals before & after a workout. How to take BCAA 1500's Take 2 tablets 2-3 times per day.