I don't know about any of you men but the red bull in the glass bottle make me last longer in bed im talking hours longer i thought it was a joke when my friend told me so i tried it myself i kept going for well over two and a half hours easily that was after drinking 4 bottles i got it from the health food store here in the US. now we have the carbonated red bull in the can and there is no comparison doesn't boost me at all. if you have information or questions feel free to email me