Shop Pre Workout at Myprotein
Pre workout is one of the most popular supplement categories out there, and for good reason — it's designed to be taken before training to help you get the most from every session. Whether you're hitting the weights, going for a run, or pushing through a tough HIIT class, the right pre workout powder can make the difference between a session you're proud of and one you're just getting through.
The range here covers everything from high-stimulant formulas loaded with caffeine to completely stim-free options built around pump-focused ingredients. Formats include powders, gummies, shots, and gels — so whatever your preference or training style, there's something that fits. Creatine increases physical performance in successive bursts of short-term, high intensity exercise1, and you'll find it featured across several formulas in the range.
Who Pre Workout Is For
Pre workout is for anyone who trains with intent. If you're regularly lifting, running, cycling, or competing, these formulas are built around your needs. They're popular with gym-goers who want to dial in their focus before a session, athletes looking for an extra edge on performance days, and anyone who trains early in the morning or straight after a long day at work when motivation needs a nudge.
The range isn't limited to experienced athletes either. If you're earlier in your fitness journey and curious about pre workout supplements, there are lighter caffeine options to start with — and if you're sensitive to stimulants, the stim-free formats are a solid entry point. Essentially, if you train and you want to feel ready to train, pre workout is worth considering.
When to Use Pre Workout
Timing matters with pre workout. Most powder-based formulas are best taken around 20–30 minutes before your session, giving the ingredients time to kick in before you start warming up. Pre workout shots and gels tend to be faster-acting, making them handy for those with a shorter window between leaving the changing room and hitting their first rep.
Caffeine sensitivity is worth factoring into your timing decisions too. If you train in the evening, a high-caffeine formula late in the day might interfere with sleep — in that case, a stim-free option gives you the formula you want without the stimulant. On days off, there's generally no need to take pre workout at all; it's a training-day tool, not an everyday supplement.
Pre Workout Benefits
Caffeine-Powered Formulas
Caffeine is a stimulant compound and one of the most well-researched ingredients in sports nutrition. Many pre workout formulas are built around it, with options ranging from 150mg per serving right up to 300mg for those who want something more intense. It's a core reason so many athletes reach for pre workout before training.
Creatine for High-Intensity Performance
Creatine is a key ingredient in a number of formulas across the range. Creatine increases physical performance in successive bursts of short-term, high intensity exercise1 — making it particularly relevant for weight training, sprinting, and sport-specific work that involves repeated explosive efforts.
Stim-Free Options for Any Time of Day
Not every training session calls for caffeine, and not every person responds well to stimulants. Stim-free pre workouts — typically built around ingredients like L-citrulline — give you a formula focused on training feel without any caffeine. Origin Pump Pre-Workout | Stim & Caffeine-Free, for example, delivers 8.0g of L-citrulline DL-malate per serving.
Format Flexibility
The range covers more than just powders. Pre workout gummies, ready-to-drink shots, gels, and dry scoop formats all sit within the category — so you're not locked into one way of taking it. Whether you prefer mixing a shake at home or grabbing something portable on the way to the gym, there's a format that suits how you train.
Popular Picks
Origin Pre-Workout — Built for those who train hard and want maximum intensity, Origin Pre-Workout delivers 300mg of caffeine per serving, increasing endurance performance and capacity while improving concentration and alertness.
Impact Pre-Workout — A solid entry point for those who want a pre-workout hit without going all-in, Impact Pre-Workout provides 150mg of caffeine to increase endurance performance and capacity while sharpening concentration and alertness.
Origin Pump Pre-Workout | Stim & Caffeine-Free — For those who train later in the day or want to skip the stimulants entirely, Origin Pump Pre-Workout is a stim-free formula packed with 8.0g of L-citrulline DL-malate and 3.5g of beta alanine.
FAQs
What is pre workout?
Pre workout is a category of sports nutrition supplements formulated to be taken before exercise. Most contain a combination of ingredients such as caffeine, creatine, amino acids like L-citrulline, and B vitamins, all brought together in a single serving. They're available in several formats including powders, shots, gels, and gummies, and are designed to fit into your routine in the window before training begins.
What's the best pre workout in Ireland?
Origin Pre-Workout is one of the most popular choices for those looking for a high-stimulant formula — it delivers 300mg of caffeine per serving alongside ingredients that increase endurance performance and capacity. For something less intense, Impact Pre-Workout offers 150mg of caffeine per serving and is a strong all-rounder. The best pre workout for you depends on your caffeine tolerance, training style, and whether you prefer powder, shot, or gel formats.
What's the difference between pre workout powder and other formats?
Pre workout powder is the most common format and lets you adjust your serving size if needed. Shots and gels are pre-measured, portable, and faster to consume — useful if you're heading straight from work to the gym without time to mix a shake. Gummies offer a convenient, chewable alternative. The core ingredients can be similar across formats; the main difference is convenience and how quickly you can take them.
Is there a caffeine-free pre workout option?
Stim-free pre workout options are available across the range, designed for those who are sensitive to caffeine, train late in the evening, or simply prefer to keep stimulants out of their stack. Origin Pump Pre-Workout | Stim & Caffeine-Free is a prime example, built around 8.0g of L-citrulline DL-malate per serving. These formulas focus on the training experience without any caffeine content.
How much caffeine is in pre workout?
Caffeine content varies significantly across the range. Impact Pre-Workout contains 150mg of caffeine per serving, which sits in the moderate range and suits those newer to pre workout supplements. Origin Pre-Workout steps it up to 300mg per serving, making it one of the stronger options available. If you're not sure where to start, beginning with a lower caffeine option and building from there is a sensible approach.
Can I use pre workout gel?
Pre workout gels are a format available within the range — THE Pre Workout Gel is a ready-to-use option that doesn't require mixing or preparation. Gels are particularly useful for training on the go or when you need something fast-acting and portable. They're taken directly before exercise and are a practical alternative to powder-based formats for training in locations where you don't have access to a shaker.
Who develops the pre workout formulas at Myprotein?
All pre workout formulas are developed by Myprotein's expert nutritionists. The team works to create products that are backed by ingredient science, precisely dosed, and available in formats that fit real training schedules. That process covers everything from ingredient selection and flavouring through to ensuring products meet the standards expected by serious athletes and everyday gym-goers alike.
What ingredients should I look for in a pre workout supplement?
Caffeine is the most commonly sought ingredient in pre workout formulas and is a stimulant compound found across much of the range. Creatine is another widely used ingredient — creatine increases physical performance in successive bursts of short-term, high intensity exercise1. L-citrulline features heavily in pump-focused formulas, particularly stim-free options. The right combination depends on what you're training for and whether you want stimulants in your formula.
How do I choose between pre workout options?
Start with your caffeine tolerance — if you're new to pre workout or sensitive to stimulants, a moderate-caffeine formula like Impact Pre-Workout (150mg) is a more sensible starting point than a high-stimulant option. Consider your training type too: explosive, high-intensity work pairs well with creatine-containing formulas. If you train in the evening or want to avoid caffeine altogether, a stim-free pre workout is the practical choice. Format preference — powder, shot, gel, or gummy — is the final piece of the puzzle.
What's the difference between stimulant and stim-free pre workout?
Stimulant pre workouts contain caffeine as a core ingredient, with doses typically ranging from 150mg to 300mg per serving depending on the formula. Stim-free pre workouts contain no caffeine and instead focus on other ingredients — most commonly L-citrulline — to deliver a different training experience. The choice between them comes down to personal preference, time of day, and how your body responds to caffeine.
1. Creatine increases physical performance in successive bursts of short-term, high intensity exercise. The beneficial effect is obtained with a daily intake of 3g of creatine.
