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Darkstims Pre V4 – The UK’s Best-Dosed Pre-Workout
Darkstims Pre V4 is built for lifters who want real energy, focus, and pumps — with a fully transparent label and doses that hit. No fluff. No underdosed blends.
Formula (per 1 scoop / 20g serving)
What you feel
Pump: 8g Citrulline + sea salt for bigger, fuller pumps
Endurance: 3.5g Beta-Alanine to push through fatigue
Focus: Tyrosine + CDP Choline + Theanine for locked-in training
Energy: 400mg caffeine matrix (dual-source) for strong drive without the messy crash
Absorption: AstraGin + BioPerine to help it hit harder
How to use:
Mix 1 scoop (20g) with 400–600ml cold water 20–30 mins pre-workout.
First time: start with ½ scoop.
Do not exceed 1 serving in 24 hours.
For best pumps: 30–60g carbs around 60 mins pre-training + plenty of water.

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Overall rating: 4.9 / 5 from 738 reviews.
Bonkers brilliant pre workout
Robert H. 5/5 Verified
This product is amazing. The pumps and energy I receive taking this pre workout is absolutely incredible. Highly recommend!
Dalton L. 5/5
Really good taste, really easy mix, gives great energy and have no post or mid workout crashes like other brands!
Matthew S. 5/5 Verified
Gave a crazy pump, locked me in big time. Not going back to any other pre, wish I could afford more flavours lol
Dan R. 5/5 Verified
I love this product!! 💯 recommend! My partner and I both take this product and wouldn’t go back. It Gives you the pump you need to level up and blast through your workouts no matter the length. Absolutely fire of a product. 🔥
Tamara B. 5/5 Verified
Absolutely unreal products! Amazing quality and taste! Pumps last whole workout. Highly recommended!
Lloyd H. 5/5 Verified
This stuff is amazing. My legs are pumped!
Mary I. 5/5 Verified
Absolutely elite quality products and stack! The best pre workout and pump I’ve had in years! Immense focus and can really feel the difference in comparison to other brands I’ve tried in the last few years! My new go to moving forward 💪🏻💪🏻 highly recommended
Lloyd H. 5/5
Really good pump, crash isn't too bad, the flavouring on the cherry is too harsh but other flavours like strawberry orange are perfect
Ethan M. 4/5 Verified
I had only tried one other pre workout before dark stims and it made my shit green 😂. When my first tub of dark stims arrived i was happy to see it was a normal colour, mixes really well and the effects are mind blowing the high dosage of all ingredients gives you the most insane pumps, don’t waste your money on whatever you can get from your gym when this stuff is the same price and gives you reliable performance with less bullshit ingredients. Thank you Dark Stims
Henry B. 5/5
Having tried most of the other pres on the market over the last 18 years I had to try this one and this is my review - Mixes very well, smooth to drink and tastes great. No powdery or chemical taste. No huge energy hit but a gradual increase and it doesn’t crash down either. I started with 1 scoop but now use 1.5 and it easily gets you through a 1.5-2 hr session and keeps you energised hrs after. Focus, vascularity and pumps increased. Definitely a new staple for me
Paul G. 5/5
The best pre workout I've come across in all factors. Flavour, Quality for Value and Pump. I've been a constant returning customer, other pre workouts don't hit as hard as this one. 👌
Kyle R. 5/5 Verified
best pre
Aaron M. 5/5 Verified
Tasted unreal and mixed perfectly
Keith L. 5/5 Verified
Aaron M. 5/5 Verified
Best prework
Terrie S. 5/5 Verified
Darkstims Pre-Workout V4 I’ve tried a fair few pre-workouts, and this one genuinely stands out. The energy kicks in smoothly without that jittery feeling, and the focus it gives is proper dialled in, I felt locked in from start to finish. What I liked most is there’s no crash afterwards, which is a big win for me. Taste is solid too, not overly sweet or artificial. Definitely one I’ll keep in my routine.
Bilal S. 5/5 Verified
Consistent boost of energy during the gym, amazing taste too would recommend it again but I only tested one flavour so I will order more
Bartek D. 5/5 Verified
Best tasting pre-workout I've tried. Previously been using DY Nutrition Blood & Guts for a few years, this tastes better and gives me great focus and drive in the gym.
Peter M. 5/5 Verified
The energy and pump I get off this pre-workout is insane best I have used in years
Steven M. 5/5 Verified
Using 26kg for 12 reps with the help of darkstims
Andrew F. 5/5 Verified
taste amazing
Aaron M. 5/5
Great energy
Riley T. 5/5 Verified
The best pre workout I have tried and I’ve tried a lot
Steven B. 5/5 Verified
Flavour amazing,pump amazing,focus amazing and price very fair
Ross S. 5/5 Verified
I’ve tried LOADS of different pres! This is my fav so far! Not as stimmed so don’t get the crash or the jitters but the pump is next level! Tastes good and priced a bit high but worth it!
Lee H. 5/5 Verified
10 times better then other products I’ve used will definitely be buying darksims from now on
Sam H. 5/5 Verified
Best pre I've had in a long time. You know it's good when you can actually feel it working before the workout and when it kicks in when you start. Flavours great, not at gassy like other pre I've taken. I'm reordering right after I've finished typing this.
Mr D. 5/5 Verified
I purchase this for my grandson, he highly recommends it.
Terrie S. 5/5 Verified
really like the cherry flavour goes down really well compared to other pres
Aaron M. 5/5 Verified
Def feel the buzz. Few tingles and skin reactions buts kept me going all session. Will be buying again.
Gem 5/5
Great product. Taste good. does exactly what it says on the tub.
George T. 5/5 Verified
The product have the best effect of any pre that i have tried before the new flavouring is very good and improved upon a genuine good product and such a cheep price
James M. 5/5
Amazing flavours for a really good price
Leo 5/5
Been buying since v1, best pre I’ve ever tried would recommend 10/10
Caleb 5/5
I purchase as a gift and it is well received. They don’t use anything else!
Terrie S. 5/5 Verified
So far so good 💪🏻 enjoying the feeling, not over stimulated just enough for the session and keeps me going for my 3hr training session!
Fiona M. 5/5 Verified
Love this pre workout nice taste and gives you a good pump!
Bernice W. 5/5 Verified
Amazing!!!!
Muhammed A. 5/5 Verified
Absolutely perfect it gave me such a buzz. It was motivated me to leave my house when I didn’t feel like going to the gym. It was absolutely incredible.
Ella C. 5/5 Verified