Carnosine boosters, Isatori H Blocker and AST Sports Science Beta-X are the latest breakthrough in the Supplement industry. Carnosine buffers hydrogen ions in your muscles. Hydrogen ions are produced by your muscles when they are put under intense strain and they build up as lactic acid. This is the cause of muscle fatigue, if you supplement with Carnosine you will delay the onset of muscle fatigue which will help you workout harder for longer.