ProSupps Mr. Hyde Nightmare Pre-Workout Powder Jawbreaker

Ingredients (per serving)

The clinical ranges are the doses at which studies show an effect on sports performance, measured in healthy, trained adults of roughly 70 to 90 kg (mostly men). Lightly dosed does not mean no effect: a can of energy drink contains about 80mg of caffeine and noticeably boosts alertness, but sits below the doses used in performance research. Your own needs depend on body weight and sensitivity. Studies and sources are listed per ingredient on the ingredients page. View all ingredients and sources