Change Currency

Other Countries


TPW™ i-Surge is a non-stim based intra workout formula designed to be taken during your workout to help increase strength, speed, power and endurance, as well as combat fatigue. It comes in a range of all natural flavours for the ultimate supplement to take during your workout.

The unique formulation of i-Surge means it is a high performance supplement for anyone looking to smash training plateaus. It includes a wide variety of cutting-edge natural ingredients that synergistically work together to raise your maximum output and intensity during training or competition.

  • High performance intra-workout formula

  • Designed to enhance workout output

  • Helps reduce fatigue during exercise


  • Step 1:

    Product Profile

    The Protein Works


    Engineering Researched & formulated in the UK at THE PROTEIN WORKS™
    Production Quality Manufactured, packed & despatched by THE PROTEIN WORKS™
    Flavouring & Colouring NATURAL flavours & colours
    Thickeners & Fillers 100% FREE of thickeners & fillers
    Ingredient Sourcing TPW™ accredited supplier & INFORMED SPORT™ approved supplier
    Certificate of Analysis Independently certified & full documentation provided, see Product Testing
    Level of Guarantee TPW™ Money Back Guarantee applicable on this product
  • Step 2:

    Protein Insight

    The Protein Works


    There is no protein in this product.

Write a review
91% rating (28)

* Required Fields

Time until next dispatch: 2hrs 17mins 25sec

Special Offer
Price From: £8.49 Per Serving = £1.00
Add to Basket

Earn 8 TPW™ Loyalty Points

Special Offer


  • Vegetarian
  • Vegan
  • Gluten Free
  • Natural flavours and colours
  • Diabetic
  • Wheat Free
  • GM Free

i-SURGE Intra Workout Formula

i-Surge Intra Workout from The Protein Works™ is an advanced intra workout formula that’s been scientifically formulated with the purest forms of performance enhancing amino acids and extracts. Each of the ingredients in i-Surge have been shown to individually help improve performance. Combined together in the amounts and ratios found within the i-Surge formula, they work synergistically when taken during your workout phase to help increase strength, speed, power and endurance, as well as contribute to combating fatigue.

Importantly, i-Surge has been purposely made with a wide variety of non-stim based ingredients. This means it works very well with our potent pre-workout RAZE™ to ensure both your pre-workout and intra-workout supplementation is taken care of effectively. i-Surge is also the ideal supplement to take before your workout as a pre-workout, if you are sensitive to caffeine or just want a non-stimulant based, performance enhancing formula.


i-Surge Formula Insight

To help you better understand the theory and science behind our unique i-Surge formula, below we’ve listed each of the active ingredients and given some key insights into how they will help improve both the intensity and duration of your workout:

  • iBCAA - Shown to promote recovery & lean muscle mass. We use premium grade instantised material for easy mixing.
  • Beta Alanine - Helps delay onset of muscular fatigue, and improve exercise performance and power output.
  • L- Citruline - Helps improve overall improvement in aerobic performance and a reduction in fatigue during intense training.
  • Taurine - Plays an important role in protein synthesis, cell hydration and cardiac function.
  • N-Acetyl L-Carnitine - Shown to improve the efficiency of the body to burn use fat as a source of fuel and improve muscular endurance.
  • Electrolyte Blend - Comprising sodium, potassium, calcium and magnesium, this is essential for maintaining correct hydration levels, avoiding cramps and ensuring the muscles contract and work at their optimal level.
  • B Vitamins- Essential for turning carbohydrates, protein and fat into energy, and for the proper functioning of the nervous and immune system.


i-Surge Quality Assurance

Here at TPW™, you can have supreme confidence in the product quality and supply source. Each ingredient supplier must pass rigorous audits and checks before being given the TPW™ quality seal of approval. Traceability, quality, and consistency are the three things we demand on every single ingredient. This is our philosophy that flows through every product we manufacture and sets us apart in the world of sports nutrition today.

Please note that this product is produced in-house at our very own production facility. It is supplied in a re-sealable foil pouch to ensure freshness and a scoop is included free of charge in every product.

Q. When should I use i-Surge?

A. During your workouts.

Q. I’m sensitive to stimulant based pre-workouts, will i-Surge be ok for me?

A. i-Surge would be perfect since it’s non-stimulant based so is actual ideally created for people like yourself.

Q. What are main reasons for using i-Surge?

A. To improve exercise intensity and enhance strength, speed, power and delay the onset of fatigue.

Q. Can I use i-Surge with other supplements?

A. Yes absolutely. i-Surge takes care of all your supplement needs during your workouts and works very well when taken with RAZE™ Pre-workout or any number of our post workout blends post workout such as TPW™ 100% Whey Advanced, THE WORKS™ or our specially designed Recovery Protein.

Q. What if any side effects will I get from taking i-Surge?

A. We haven't heard of any nasty side effects from taking i-Surge.

Q. Do I take i-Surge during a competition or training?

A. The answer is yes to both. Since i-Surge has been designed to enhance performance it could be taken during either.

Q. What effects should I expect from taking i-Surge alongside my training regime?

A. People taking i-Surge experience an improved workout intensity and output as well as reduced fatigue.

Q. Who should take / benefit from using i-Surge?

A. Bodybuilders and strength athletes. Endurance athletes. Those new to weight training. People involved in team sports. Those who participate in regular intense training and exercise.

Serving Size: 25g (half a 70cc large scoop)

For optimal results, we recommend using before and during your workout.

Add half a scoop (25g) to 200-225ml water in your TPW™ Master Blender. Then shake well and consume.

If you truly need a huge kick before you hit the gym then this is for you.Youll smash any workout with this.

Use my referral code - MP126010 to get yourself a free £10 bag of protein.
TF334153 - Use this code at checkout for free protein!

Good stuff, potent effect.
This is an awesome product for when you are on a stimulant break or sensitive to caffeine based pre workouts, it provided me with extra endurance and energy when dieting to perform extra drop sets and reduce rest periods between my sets from the normal 90-150 seconds down to 40-60 seconds.

This is a great product for improving workout speed allowing for you to finish your gym routine faster.

It mixes easily due to the iBCAA which are dosed at a great 10 grams per serving the taste of the berry variant is also refreshing and not sickly making it easy to use on a daily basis.

5/5 great well dosed and valued BCAA intra workout supplement.

For Free Protein Use My Referral Code: JM15339

Pop up blocker may have to be disabled for code to work.
I can't handle caffeine at all so I use this as a preworkout instead. It's great! I can lift a lot more when I use it and don't have any of the awful shakes or sleepless nights I struggle with when I take normal preworkout!
Cracking intra work out drink. Definitely gives you a boost.

Must be mixed well, ideally with the TPW shaker bottle (with the mixing ball in) as it will come up grainy otherwise!

Great in work-out boost. Much the easiest way to get BCAAs in your system. Love the apple flavour.
its not for me. I got a good lift but I didn't like the tingling effect I got in my face from it so stopped using it.
First time I have used an intra powder , and it does help me during my workouts. I'm not a fan of the strong pre workouts as make me edgey so this product is perfect for those that want an intense workout without the nasty crash you get from some pre workouts .

I was looking for a good intra workout that was similar to xtend and came across this one. The quality is as good if not better than xtend at a fraction of the cost. Glad to see a sup company that offers quality products with sensible prices to go with it .
I started to use this after deciding to take a break from stimulant based pre workouts, my tolerance was getting quite high so my doses were getting higher every week. Will continue to use this to help me during my training.
Perfect when you don't want any stims during your workout but need the energy boost . I have started to become sensitive to caffeine so this is ideal for me now , take pre and intra to keep me going .
Love it, gives that boost to do more and more during my workouts. Thank you TPW :)
Got this as part of a training pack and seems to do the trick, energy stays higher during workouts and don't get any horrible sickness and shakiness,
This is very sweet stuff. I got the Green Apple flavor which was a bit zingy but not to harsh. Would buy again for sure.
Been using some US pre workouts and they are not suiting me at all. I'm ok when I train, but feel dreadful after they have worn off, so gave this a go after a mate recommended it. You don't get any kick or buzz, but what you do get is a decent flow of energy that you can get a good workout from, Taste is fine in apple , all round good product.
Notice a real difference when I don't train with this now, Apple flavour is zingy so keeps you refreshed when your hitting the wall, be good if they could add an orange flavour in to this , as I take the ibcaa in orange an like that too, top product, would use all the time if I could.
make a shaker of this up when i'm doing circuits, keeps my energy levels up where they need to be and helps with any soreness the next day, use couple times a week. Flavour is nice, not too strong.
Use this instead of pre-workouts sometimes when I want a break from the stims. Good list of things with clear benefits, Flavour is good as gentle so easy to sip on while you train, so sickly sweet .
Quality ingredients, a good functional product . I take during my sessions to keep me going
just used this product before and during hitting my 10x10 dead-lift challenge. worked well kept my focus and kept me crashing out.
Thing is I'm not to keen on having a lot of caffeine before my works as you get with most pre-work products, so i prefer to use high BCAA's mixed with other stuff to give more of a natural boost that keep you going.

Overall not a bad buy, worked well before and during a workout, fairly cheap, will recommend and will buy again.
apple spike is surprisingly nice too, but hey that's my taste buds.
Definitely been helping me through my workouts but a little on the expensive side to use all the time. May try just the iBCAA's next.
Great taste, not too sweet and mixes well.
Most other intraworkout products I have seen have added carbs, which may be undesired, however this is a very good product with a very good ingredient profile.

Although, if you struggle to tolerate salty tasting products, you may want to skip this (due to the electrolyte blend) but it hydrates you, which is good !
Does what it says on the tin, not to keen on the berry blitz, but definitely going to try the apple spike
I've tried my fair amount of pre and intra workouts and i can say this is the best non-stim out there
The ingredients alone in i-Surge make it 5 stars but the taste too means i'd give it 10 stars if i could
Imagine a branded isotonic drink, its that but 10x better with all the BCAA's and other stuff thrown in! Works great when stacked with Thermopro and Raze to not give you stimulant overload.
I had been waiting for TPW to release this since the company launched, and I have to say I'm slightly disappointed.

While it does give me a bit of a decent energy boost during my workout, I found that it had a strange aftertaste which left my mouth dry and feeling dehydrated, which meant I had to drink more water than I usually would. It's possible that this is just the effect one (or some) of the ingredients had on me personally, but it would put me off buying it again.

Also I found the Berry Blitz flavour to be quite weak and not very pleasurable to drink with the taste of the ingredients coming through too much - again, this could just be me personally, but I would've preferred a more 'refreshing' type of drink. Think I'll stick to a carbohydrate based intra-workout drink in future.
  • 1 of 1 people found this review helpful
I am currently using Thermopro pre workout which has a high dosage of caffeine so I needed a product without stimulants to take both before and during a workout. I ordered the Berry Blitz as I'm not a huge fan of apple flavoured drinks. The Berry does take a bit of shaking to mix and leaves some froth on the top initially which will eventually settle down. BCAA'S are notoriously difficult to mask and there is still a slight bitter taste with this. Ideal though to take pre workout if you are stim sensitive and intra workout to prevent DOMS.

Only registered users can write reviews. Please, log in or register