Bodybuilding.com™ Elite Ultimate Pre-Workout Stim-Free is formulated with three scientifically researched, trademarked ingredients. It is designed to prepare your body and mind to optimize training without stimulants - making it easily stackable with other supplements. It also combines Citrulline and Beta-Alanine to support blood flow and endurance.*Informed Sport Certified & Banned Substance Tested** Features 3 Scientifically Researched, Trademarked Ingredients* 6g Citrulline, 1.5g Nitrosigine® (Inositol-Stabilized Arginine Silicate) to enhance Nitric Oxide & Blood Flow* 3.2g Beta-Alanine & 2.5g Betaine to boost power and endurance* 2g GlycerSize® Glycerol to promote hydration* 400mg PeakATP® to boost Performance* Awesome Flavors with No Artificial Colors or Dyes