Hard hitting pre workout detonator designed to take your workouts to the next level Combines full potency dosages of research-validated ingredients Mix with cold water & drink approximately 30 minutes before training Grenade's famous pre workout will help you outwork the competition! Powered by Grenade, the multi award winning sports nutrition specialists, .50 Calibre combines full potency dosages of research-validated ingredients so you get increased energy levels .The caffeine provides explosive, energy-fuelled support for your focus, drive and concentration. 50 Calibre also contains a patent-pending Muscle Defence System. Now you can push through to train at the next level.