Myprotein pulse v4 is a very powerful pre workout that has been designed to give you the energy and push you need to go to the gym and train insaner plus v4 from my protein provides you with a fat free workout enhancer ideally used 30 minutes prior to trainingr my protein pulse v4 delivers 168mg caffeine per serving helping to increase energy levels and enhance mental focus ndash perfect to enhance strength and power during exerciser and includes creapure featuring creatine monohydrate