HWMF isn't just an acronym. It's a way of life. A hard-working mf'er deserves a pre-workout that can fire them up for any and every training session. That's why we created HWMF, a high-stim pre-workout loaded with 400mg caffeine, HWMF also contains 6 grams of L-citrulline, 2.5 grams of betaine, 600mg of alpha-GPC and more.