Been taking different pre workouts for over 2 years now, got a high tolerance for caffeine.
The caffeine is not the issue here however, the come up and peak are really good, mental focus and energy are in point but jeezo the crash is so bad!
I couldn't fall asleep at all and I took the reccomended serving size at 8. Felt light headed, zoned out, nauseous, numb, deflated and tingly all at once. The worst feeling ever. Those symptoms held on for 2 days!
Never taking this again.