red bull

not getting anything anymore taking red bull I need something more strong what is a good pre workout that I can take to really get my juices flowing? Need a good one

what do you think about using Red Bull as a pre workout instead of expensive supplements. Wouldn't it do the same job as they will? I can't seem to work out unless I have something to Hype me up and this stuff seems to be working good for me. I drink two of them before my workout for the past...