Non-GMO Gladiator Pre-Workout Powder. Gladiator is all the performance you expect from a pre-workout with added endurance ingredients like rhodiola and ActiGin to keep you pushing harder and faster than ever before! Ryno uses two different forms of caffeine, pure caffeine and guarana seed extract 50% so you have energy to get started and energy to keep going! Ryno uses only non-GMO natural flavors with stevia to make Gladiator the best tasting, healthiest and most performance based pre-workout you will ever take! Use this product for the gym, for endurance activities like cycling, triathalons, motocross, action sports, circuit training and more.