How to use
It really is that simple
Scoop
Add a scoop of Evolution to water
Mix
Shake or Stir until fully dissolved
Enjoy
Take 20-30 minutes before training
Regular price
£28.99
Regular price
£28.99
Sale price
Unit price
per
Meet your new go-to for serious training days.
Evolution Pre-Workout is designed to help you lift stronger, focus harder, and keep your energy high from start to finish without the crash.
Pick Your Flavor
Pick Your Quantity
1 pack
£28.99
POPULAR
2 Pack
Save 10%
£52.18
£57.98
BEST VALUE
3 Pack
Save 15%
£73.92
£86.97
Pick Your Plan
Couldn't load pickup availability
Made in the UK
Royal Mail Tracked 24 Shipping
Meet your new go-to for serious training days.
Evolution Pre-Workout is designed to help you lift stronger, focus harder, and keep your energy high from start to finish without the crash.
Each scoop delivers:
-
6g Citrulline Malate for powerful pumps and blood flow
-
3g Beta Alanine to fight fatigue
-
2.5g Betaine Anhydrous for strength and endurance
-
500mg Taurine + 500mg L-Tyrosine for focus and muscle support
-
500mg Lion’s Mane for sharper mental performance
-
350mg Caffeine for clean, lasting energy
No overhype, no nonsense just a pre-workout that works as hard as you do.
Fuel your training. Stay consistent. Flex your potential.
Evolution Pre Workout
Regular price
£28.99
Regular price
£28.99
Sale price
Unit price
per
Featured In:
Pre workout Isn't Just for Energy
Theres alot more to Pre workout than you think...
Explosive Energy
Delivers a clean, immediate energy boost to elevate performance without feeling sluggish.
"Leg day made simple"
George
VerifiedDon't take our word trust our customers
Real stories from customers who love our products.
Sarah
Verified Buyer
“I added this collagen to my daily stack and honestly didn’t expect much — but my recovery feels noticeably better after heavy sessions. My joints feel supported and I’m waking up less stiff. It’s now a permanent part of my routine.”
Bovine Collagen
£19.99 £24.99
Purchased on January 15
David
Verified Buyer
“I’ve been using this almost every week for months and still love it. No flavour fatigue, reliable results, and it gives me exactly what I need for every session — energy, focus and better pumps. My go-to pre-workout now.”
Evolution Pre Workout
£28.99
Purchased on March 15
Jason
Verified Buyer
“Clean, tasty whey with solid protein per scoop — mixes smooth and supports real results.”
Foundation Whey Protein
£28.99
Purchased on March 15
Matt
Verified Buyer
“I wasn’t sure if I really needed glutamine, but I’m glad I gave this one a try. My recovery between workouts feels smoother and I don’t feel as broken after intense training blocks. It’s now part of my daily routine.”
L-Glutamine
£16.99
Purchased on March 15
Alex
Verified Buyer
“This is one of the few supplements I actually stick with. It’s easy to take, doesn’t upset my stomach, and fits into my daily routine without thinking. Great product for anyone training consistently.”
Bovine Collagen
£19.99 £24.99
Purchased on March 15
ingredient's you can trust!
Citrulline Malate 2:1
A powerful pump ingredient that increases nitric oxide production, improving blood flow to working muscles.
Why it’s included: Bigger pumps, better endurance, and reduced fatigue during intense training.
Beta Alanine
Clinically studied performance amino acid that helps buffer lactic acid buildup.
Why it’s included: Delays muscle fatigue so you can push more reps and extend training intensity. (Yes, the tingle is normal.)
Betaine Anhydrous
A performance compound that supports strength output and power production.
Why it’s included: Helps improve muscular endurance and overall performance capacity.
Taurine
An amino acid that supports hydration and muscle function.
Why it’s included: Helps maintain cell hydration and supports endurance under high-intensity stress.
L-Tyrosine
A focus-enhancing amino acid involved in dopamine production.
Why it’s included: Supports mental clarity, drive, and focus during training.
Lion’s Mane
A functional mushroom known for cognitive support.
Why it’s included: Helps enhance focus, concentration, and mind-muscle connection.
Caffeine Anhydrous
Fast-acting caffeine for energy and alertness.
Why it’s included: Increases energy, performance output, and training intensity.
Niacin
Vitamin B3 that supports energy metabolism.
Why it’s included: Helps convert nutrients into usable energy and supports circulation.
it works but how...
The science behind it
Insane Muscle Pumps
Citrulline Malate increases nitric oxide production, boosting blood flow to working muscles for fuller, tighter, skin-splitting pumps.
Clean, Focused Energy
Caffeine Anhydrous delivers fast-acting energy without sluggish buildup just sharp, high-output performance.
Laser-Sharp Mental Focus
L-Tyrosine and Lion’s Mane work together to support dopamine production and cognitive function, enhancing focus and mind-muscle connection.
Explosive Strength & Power
Betaine Anhydrous supports power output and performance, helping you lift heavier and train with more intensity.
Why Settle for a Basic pre?
Not All Pre-workout Is Created Equal
Clinically Dosed Pump Ingredients
Epic Flavours
Fast-Acting, Clean Energy
Dual Focus Formula
Imported From China
Muscle Flex
Other Brands
FEW
FEW
Most
Muscle Flex
Other Brands
Clinically Dosed Pump Ingredients
Epic Flavours
FEW
Fast-Acting, Clean Energy
Dual Focus Formula
FEW
Imported From China
Most
You got questions we got answers
Find answers to common questions about our products and services.
Choosing the right supplement depends on your training goals:
- Muscle building: Whey protein + creatine
- Strength & power: Creatine + pre-workout
- Recovery: Amino acids + collagen
- Energy & focus: Pre-workout
If you’re unsure, contact us and we’ll help you select the best option for your goals.
Orders are processed quickly and dispatched from within the UK. Most customers receive their order within 1–3 working days, depending on location and the shipping option selected at checkout.
Customer satisfaction is important to us. If you have an issue with your order or need product advice, please contact our support team via the website. We aim to respond promptly and resolve any concerns efficiently.
At Muscle Flex, we focus on quality, effectiveness, and transparency. Our formulas are designed for real results whether your goal is muscle growth, strength, endurance, or recovery. We carefully select ingredients to ensure you get performance-driven supplements without unnecessary fillers. When you choose Muscle Flex, you’re choosing serious support for serious training.
For optimal results, many customers stack:
- Whey Protein + Creatine for muscle growth and strength
- Pre-Workout + Creatine for performance and power
- Amino Acids + Collagen for recovery and joint support
Stacking strategically helps maximise your results and training output.
