Originally Posted by BendtheBar
I've heard a lot about C4 but never tried it. Did you feel any lingering focus whatsoever?
I've heard a ton too, which is why I tried it. I got the beta tingles prior to working out, so I know it was working. I did feel focused when I got back to my apartment, so maybe it was just my excitement of all the new toys that covered up the energy I was getting. All of my friends/acquaintances who have tried it love it.