MusclePharm® Assault™ is leading the charge as The Athletes’ Choice for a pre-workout supplement that delivers results — Safely. Unlike “stimulant-concentrated” formulas that hit hard and then leave you hanging like you just got mugged in a dark alley…Assault™ is there from start to finish. Developed at the state of the art MusclePharm® Sports Science Center, Assault™ is the most researched pre-workout product on the market today. As athletes ourselves, we wanted it to do more than pack serious muscle-building power. We set the safety bar sky-high so other athletes know that they’re supporting their bodies with a great supplement. Multiple clinical studies have been published proving that Assault™ increases performance effectively but safely. In the words of our research team, “Assault™ is a safe and effective supplement that can promote increases in strength, muscular endurance, energy, choice reaction, and agility while decreasing fatigue in healthy men.” We are proud to say that Assault™ is one of the only pre-workout products on the market that has certifications from Informed-Choice® as Banned Substance Free.