"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." NO MATTER WHAT your goals include, sometimes we all need a little extra power, a little more energy, or a ...

Researchers know that caffeine can improve mental processes, strength, power, and endurance during a workout. A 2016 study found that people who consumed pre-workout drinks containing caffeine saw a ...

Most pre-workout supplements are considered safe for many adults, but they are not essential for health or exercise performance. Their ingredient mixes vary widely by brand. Ingredients like caffeine, ...

While there’s no single definition of what a pre-workout supplement should contain, many include various combinations of caffeine, beta-alanine, creatine, nitrates, and branched-chain amino acids ...

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 ...

Learn how long pre-workout supplements stay in your system, which ingredients matter most, and what to consider for timing, health, and performance.

This is read by an automated voice. Please report any issues or inconsistencies here. The pre-workout industry has absolutely exploded in recent years, and it has become a staple part of training ...

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 ...