Just started taking C4 preworkout and must say that I am a huge fan and had a sustainable workout with only 1 scoop. before hand was taking 1 M.R., but know it will be altered soon due it being methylated. When ever something works FDA is sure to stop it. Was taking jacked3D, bumped quick immunity to affects even with 3 scoops. Also learned that some in the police and military forces are pissing hot from use, showing up as small traces Of meth. Being I am in the military can't afford that crap. However back to C4, gray pumps, the NO2 effects are amazing and kept hold of strength and endurance throughout work out.
Never accept anything less than the best for yourself