Pre-Workout formulas without caffeine are patented blends of several components that enhance our endurance, strength, mental focus, and circulation during exercise, thereby improving our overall performance. These products are taken before a workout or any other activity when feeling tired and in need of an extra boost. In contrast to other pre-workout products, these do not contain stimulants like caffeine, guarana, or theine from coffee and tea. Pre-Workout products are usually based on amino acids, creatine, vitamins, minerals, and plant extracts that stimulate protein synthesis, have anabolic effects, and give our body an extra boost.