The only pre-workout that you can visually see working 💪 @corbin_jk has been using Muscle pre-workout since before it even had a title, and all through his NFL career. It's still his go-to when he wants that edge. Gym: @ofit_syndicate #Klerpath #musclepreworkout #supplements #nutrition #preworkoutstack #preworkout #gromuscle #nflcertified #npcbodybuilding