Our Stim pre workout is designed to give you all the benefits without the crash. A next-level pre workout supplement designed to dramatically increase blood flow. focus. strength. mood. muscular endurance and optimize performance. Thentic's stim pre-workout consists of clinically tested ingredients at scientifically proven dosages formulated by a Pharmacist and Certified Personal Trainer. Designed with the health conscious fitness enthusiast in mind with zero artificial sweeteners. colors or added sugar. If you're looking for a product that consistently delivers. you've found it.