Do Pre-Workouts Work? What to Take and Why

At Sussex Performance Centre, our members train with intent—and that means fuelling their sessions smartly. One supplement that regularly comes up is pre-workout. Whether it’s for a Monday morning lift or a midweek strength class, many gym-goers turn to pre-workouts for an energy boost. But do they actually help?

Let’s break down the science, the benefits, and what to look for (or avoid) in a pre-workout.

What Is a Pre-Workout?

A pre-workout is a supplement taken 15–45 minutes before training to enhance performance. Most come in powder form and aim to improve:

Energy
Focus
Strength output
Muscular endurance

These effects come from a combination of ingredients—some of which are scientifically proven to work, and some that are just marketing fluff.

Do Pre-Workouts Work?

It depends on the ingredients. Some have strong scientific backing, while others rely on large caffeine doses to give a short-term “buzz.”

What the Research Says:

A 2012 study in the Journal of the International Society of Sports Nutrition found that pre-workout supplements containing caffeine, beta-alanine, and creatine significantly improved anaerobic power and performance in resistance training (Hoffman et al., 2012).
A 2020 meta-analysis in Nutrients concluded that caffeine reliably improves strength, endurance, and anaerobic performance across trained and untrained individuals (Grgic et al., 2020).

In short: Yes, certain pre-workout ingredients can improve performance, particularly when dosed correctly.

Key Pre-Workout Ingredients That Work

Here’s what to look for—and why it matters:

1. Caffeine (150–300mg)

Why? Increases alertness, reduces perceived exertion, and enhances performance.
Backed by: Multiple studies, including a 2021 review (Nutrients), showing caffeine improves both endurance and strength.
Caution: Avoid high doses late in the day—it can impact sleep quality.

2. Beta-Alanine (3.2–6.4g daily)

Why? Buffers acid buildup in muscles, improving high-rep or high-intensity efforts.
Note: Works best when taken consistently, not just before one session.
Backed by: Research from Medicine & Science in Sports & Exercise (2015), which showed improvements in muscular endurance and fatigue resistance.

3. Creatine Monohydrate (3–5g daily)

Why? Increases phosphocreatine stores to support ATP regeneration—vital for strength and power.
Backed by: Over 500 peer-reviewed studies. Considered one of the most effective supplements available.

4. Citrulline Malate (6–8g)

Why? Boosts nitric oxide levels, increasing blood flow (“the pump”) and reducing fatigue.
Backed by: A 2010 study in the Journal of Strength and Conditioning Research showed improved bench press volume and reduced soreness.

5. Tyrosine or Alpha-GPC

Why? Improve cognitive focus and mental clarity during intense sessions.
Evidence: Early-stage studies support improved working memory and reaction time under stress.

What to Avoid

Proprietary blends: These hide exact ingredient amounts—making it hard to tell if doses are effective.
Excess caffeine: Some pre-workouts push beyond 400mg, which can cause jitteriness, heart palpitations, and poor sleep.
Unnecessary stimulants: Ingredients like yohimbine or DMAA can cause unwanted side effects and are banned in many countries.

Should You Take a Pre-Workout?

Ask yourself:

✅ Do you train early or feel low on energy before sessions?
✅ Do you want an extra edge in focus or performance for tough workouts?
✅ Are you monitoring your caffeine intake from other sources?

If yes, a simple pre-workout stack might help. But if you already have good sleep, nutrition, and hydration, it’s not essential—just a bonus.

SPC-Approved Pre-Workout Options

Here’s what we recommend for members who want to try it:

Minimalist Stack (DIY):

Black coffee (150mg caffeine)
Creatine monohydrate (5g)
Beta-alanine (3.2g)
Optional: Citrulline malate (6g)

👉 Cost-effective and backed by science. Just mix in water.

All-in-One Options:

Bulk Pre-Workout (from Bulk.com) – Transparent ingredients and smart doses.
Pre-Kaged (by Kaged Muscle) – Well-dosed and Informed-Sport tested.
MyProtein THE Pre-Workout – A good UK option with decent ingredient spread.

Look for Informed-Sport certification if you want tested products for sport safety.

Final Word

Pre-workouts aren’t magic, but when used wisely, they can give you a real performance edge. Focus on the ingredients that matter, avoid the hype, and remember: the biggest performance booster is consistent training—like our members do at SPC.

References:

Hoffman JR et al. (2012). J Int Soc Sports Nutr.
Grgic J et al. (2020). Nutrients.
Trexler ET et al. (2015). MSSE.
Wax B et al. (2010). J Strength Cond Res.