Most pre-workout supplements are considered safe for healthy adults, but they aren’t essential for health or performance. Whether you’re a regular at the gym or stick to at-home workouts, you may have ...

C4 Pre-Workout is a workout supplement line from Cellucor that people may take before exercise to help increase energy, alertness, and strength. They contain caffeine and creatine, which may help ...

Pre-workout supplements, also called “pre-workouts,” are meant to give you energy for when you exercise. The main ingredient in most of them is caffeine. These supplements often come in pill or powder ...