When I first tried assault my wife had to take the drink from me. I was talking like crazy and wouldnt shut up..lol.. she asked "WTF are you on?". The energy from Assault is awesome and lasts a good while. I mix 2 scoops in 12 to 14 oz of water, drink half on the way to the gym and sip on the rest while I train. Kick ass product for sure.