I'm also not convinced all these supplements are all that wonderful. I haven't taken anything in years. Just finished a jar of NeuroCore Preworkout, not sure if it even worken :erm:
Duno about NeuroCore Preworkout but the SPS Vitargo Trigger, Muscle junkie inferno and currently evox 3DT certainly has an effect on me. And not just the hair raising, skin tickling kind. I can have a mean workout and afterwards feel I still have energy for some more.
The SPS gave the most hair raising, skin tickling sensation, but that may be because it was my first venture into pre workout.