Pre-Workout: What Really Works?

Pre-workout supplements have become a staple in many fitness enthusiasts’ routines. But what do they actually contain, and do they work as promised? Here, we review the science behind the most common ingredients and how to get the most out of your pre-workout.

What is a Pre-Workout?

A pre-workout is a supplement taken before training to increase energy, focus, and endurance. Formulations vary between brands, but most contain a combination of stimulants, amino acids, and performance-enhancing ingredients.

The Most Common Ingredients – and What the Science Says

1. Caffeine – Energy and Focus
Caffeine is one of the most well-studied pre-workout ingredients. Research shows it improves endurance, strength, and mental alertness. An effective dose ranges between 150–300 mg, depending on individual tolerance.

Effect: Increases alertness, reduces fatigue, and enhances performance.
Scientific Evidence: Strong

2. Beta-Alanine – Improved Endurance
Beta-alanine helps buffer lactic acid in the muscles, which can increase endurance during high-intensity exercise. It may cause a tingling sensation on the skin, which is completely harmless.

Effect: Improves performance in explosive and high-intensity workouts.
Scientific Evidence: Strong

3. Creatine – More Power and Strength
Although creatine is usually taken daily rather than only pre-workout, it is one of the most well-proven performance-enhancing ingredients. It helps muscles produce more ATP, resulting in increased strength and explosiveness.

Effect: Increases strength, muscle mass, and recovery.
Scientific Evidence: Very strong

4. Citrulline Malate – Increased Blood Flow and Pump
Citrulline malate is converted in the body to arginine, which improves blood flow and muscle pump during exercise.

Effect: Enhances endurance and circulation.
Scientific Evidence: Good support

How to Get the Most Out of Your Pre-Workout

Take it 20–30 minutes before training – To maximize effects, allow time for absorption before starting your workout.
Adjust dosage based on tolerance – Start with half a dose if you are sensitive to caffeine.
Combine with a balanced diet – A pre-workout can enhance performance but does not replace proper nutrition.

Conclusion – Is Pre-Workout Worth It?

If you want extra energy, focus, and endurance, a pre-workout can be a useful supplement. The key is to choose a product with scientifically backed ingredients and use it correctly.

To maximize your performance, try a pre-workout containing caffeine, beta-alanine, and citrulline malate – and see what it can do for your training!

References

Grgic, J. et al. (2019). "The effects of caffeine ingestion on isokinetic muscular strength and muscular endurance." European Journal of Sport Science.
Trexler, E. et al. (2015). "The official position stand on beta-alanine supplementation." Journal of the International Society of Sports Nutrition.
Wilk, M. et al. (2020). "The effects of citrulline malate supplementation on strength and power performance." Nutrients.