I found one called WICKED. It had 300mg caffeine and i believe 72g of DMAA. Man that shit was jet fuel!! But dmaa is banned now sadly. I currently use BullNOX by Betancourt Nutrition, the grape flavor is amazing. I found a Keto friendly pre workout BEST Pre Workout by BPI and ordered a tub. Im not sure if my current pre workout is knocking me out of my fast and keto, so i wanna try this and see if i feel or notice anything.