For those lacking motivation to workout, every supplement manufacturer now makes a pre-workout energy powder, and they work! Any brand is guaranteed to launch you into a ferocious workout.
All of these pre-workout powders have 4 common ingredients: An L-Arginine compound to enhance vascularity and blood flow; Beta-alanine for recovery; Creatine – which engorges muscle tissue; and synthesized caffeine for energy.
These products work well, but they can be dangerous. Aside from frazzling the central nervous system, they can have a cumulative effect if abused, overloading the kidneys with Creatine. So take single servings, and take time off.