There's FREE white FLOOD samples available.
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My two faves are:
Gaspari SuperPump 250
VPX Shotgun V.3
Haven't tried jack3d but I have been meaning to.
i preferred both of these to jack3d, jack3d is good but is very basic and i dont get any pumps from it. I used it today for maybe the 15th time over the past few months and the energy is smooth, but no noticeable increase in pumps, vascularity or fullness.
17-hd vyotech and Nytric EFX worked well for me. Jack3d is on my to-try list.
Best pre-workout mix I ever had is 3 caps Activate xtreme, 2 caps Anabolic edge, 2 caps powerfull, 1 and a half scoops of Jack3d, 8 caps white flood and 3 scoops of X-tend. CRAZY PUMPS![]()