Runners don't need the same thing as lifters. You need sustained energy without a crash, blood flow and oxygen delivery to working muscles, lactic acid buffering that extends your time to exhaustion, and — critically — something that won't destroy your stomach at mile 4. Most pre workouts are built for the weight room. PurePump's 15 active ingredients with zero filler, zero artificial sweeteners, and zero flavoring compounds make it one of the few formulas a runner's gut can actually tolerate.