Myprotein Impact Whey Isolate Review

Protein Powder:
Adam Foster

Reviewed by:
On March 4, 2022
Last modified:March 5, 2022


A solid Isolate choice - for those willing to spend the extra money for a (slightly) higher quality of protein powder.

I wanted to update my Myprotein Impact Whey Isolate Review, to give my thoughts on it as a competitive bodybuilder.

Impact Whey Isolate is one of Myprotein’s best selling protein supplements.

It costs more money than Impact Whey – Myprotein’s best selling protein. Myprotein says it a step up in both quality, and protein quantity per serving from their whey protein concentrate – read my impact whey protein review.

Myprotein’s Impact whey isolate delivers 90% protein content, with next to no fat or carbs.

But is it worth the extra money?

If you’re currently using impact whey, or any other whey protein concentrate, do you need to spend more?


No – you don’t need to “upgrage” to Impact whey isolate if you already use Impact Whey

I would only recommend isolate or impact whey for 2 reasons.

  1. You struggle digesting Impact Whey (or a regular concentrate)
  2. You’re a competitive bodybuilder and every macro counts

Other than that, stick to Impact Whey. Why? Find out why that’s my top recommendation in my Impact Whey Protein Review.

myprotein impact whey isolate reviewMyprotein Impact Whey Isolate Review

Myproteins range of protein powder can get quite confusing.

They’ve got a ton of different protein powders including blends, different sources, meal replacements and all in ones.

They’ve even made this dummies guide to myprotein protein powders if you need a bit of help.

Impact Whey Isolate is simple – its a high quality whey protein isolate supplement, that delivers 90% protein per serving.

Unlike whey protein concentrate, (Impact Whey from MyProtein), which delivers around 80% protein content, whey protein isolate contains minimal fat, carbs and has a higher bio availability.

This means your body absorbs it easier, and more efficiently. Whey protein isolate contains the highest biological value of any protein, and packs a complete amino profile to boot. For more information on the differences between whey protein varieties check out this article or this guide to different protein powders.

Is Impact Whey Isolate Good?

Yes, Impact Whey Isolate from Myprotein is a good quality protein. It contains 90% protein content, minimal carbs and fats and is very affordable.

As you can see Myprotein Impact Whey Isolate delivers the very best in protein content and quality, without sacrificing taste. Yes, you can get an even higher % of whey protein powder from Myprotein, which carries a higher price tag. However I find impact whey isolate to be the best.

Why? Whey isolate at 90% is the type of whey protein isolate that is used most in studies. Therefor, it is the whey protein source that is the most studied, and in my opinion, the source that is most backed my science and research.

Whey Protein Isolate has a higher biological value than whey protein concentrate. Just what the hell is biological value i can hear you screaming at your desktop monitor as you’re looking at your whey protein concentrate in disgust.

Well, let Wikipedia explain

Biological value (BV) is a measure of the proportion of absorbed protein from a food which becomes incorporated into the proteins of the organism’s body. It captures how readily the digested protein can be used in protein synthesis in the cells of the organism. Proteins are the major source of nitrogen in food.

In a nutshell, you’re going to absorb more protein content, and digest this easier. This makes Myproteins Impact Whey Isolate the perfect choice for those who suffer with an upset stomach from cheaper sources of protein, such as whey protein concentrate.

This higher BV, coupled with an almost non existant carbohydrate, lactose and fat content, makes it ideal for those looking for an almost pure protein source with no extras.

A whey protein concentrate can contain up to 3g of carbs per scoop and up to 2g of fat.

That doesn’t sound a lot, but if you’re having 3 shakes a day, with 2 scoops of protein each shake – this quickly adds up.

Sure, for the casual gym goer looking to eat enough protein to gain muscle, a whey isolate might be overkill.

However for the competitive bodybuilder, or athlete, who is more concerned about hitting their macros to a T, then it would be worth while paying a bit extra and going for this higher quality of protein.

The RRP of impact whey isolate is about £7.50 more than impact whey.

However, using any of our Myprotein discount codes on site, you’ll be able to save a larger amount of money. I believe Myprotein has a higher mark up on whey isolate, meaning they can offer a greater level of discount, and more of a saving.

If you’ve got the budget, and the need for a lower calorie, but high protein content supplement, then id recommend whey isolate over impact whey, or any other brand of whey protein concentrate.

What is Impact Whey Isolate Used For?

Impact Whey Isolate is most commonly used as a post-workout protein shake to help your muscle’s recover after a weightlifting session. It’s high quality protein content makes it easier for your body to absorb, and helps speed up the recovery process.

The faster you’re able to recover, the quicker you will gain strength and build muscle. By using a high quality whey protein powder, as well as eating enough protein (1gram per lb of body weight) you will be able to recover quickly and return to the gym sooner.

Impact Whey Isolate Nutritional Information

Per 100g

  • Calories 370kcal/1573kJ
  • Protein (dry basis): 92.0g
  • Protein (as-is): 89g
  • Fat: 1g
  • Fat 6g
  • Carbohydrates: 0.7g
  • Calcium: 0.4g
  • Cholesterol: 2.0mg

Per 25g serving of Impact Whey Isolate

  • Energy: 92.5cal
  • Energy: 393.3kJ
  • Protein (dry basis): 23.0g
  • Protein (as-is): 22.25g
  • Fat: 0.25g
  • Carbohydrates: 0.17g
  • Calcium: 100.0mg
  • Cholesterol: 0.5mg

Proteins fractions available in this product are:

  • beta lactoglobulin – 47%
  • glycomacropeptide 27%
  • alpha lactalbumin – 17%
  • bovine serum albumin – 1.5%
  • immunoglobulin G – 2%
  • lactoferrin -0.5%

Impact Whey Isolate Essential Amino Acid Profile – Per 100g

  • Isoleucine 6.4
  • Leucine 10.6
  • Lysine 9.6
  • Methionine 2.2
  • Phenylalanine 3.0
  • Threonine 6.7
  • Tryptophan 1.4
  • Valine 5.9

Non Essential Amino Acid Profile – Per 100g

  • Alanine 5.0
  • Arginine 2.1
  • Aspartic Acid 11.0
  • Cystine/Cysteine 2.2
  • Glutamic Acid 18.1
  • Glycine 1.4
  • Histidine 1.7
  • Proline 5.5
  • Serine 4.6
  • Tyrosine 2.6

What’s the Difference Between Impact Whey & Impact Whey Isolate?

Whey isolate has a protein content greater than 90% compared to 80% found in impact whey concentrate. Impact Whey Isolate also has lower lactose content than whey concentrate.

What is the difference in fat content between Impact Whey Protein and Impact Whey Isolate? Per 25g, Impact Whey contains 1.9g of fat, while Impact Whey Isolate contains 0.1g.

Taste / Texture

The majority of impact whey isolate flavours mix extremely well – far easier than impact whey, or other brands of impact whey such as Protein works whey concentrate or Gonutrition whey 80+.

I very rarely use an electric blender when mixing a protein shaker. It just seems like a lot of hassle. Instead I’ll use a regular blender bottle, and shake it by hand. If you’re like me and forget to clean your shaker bottle after using it, here are 5 ways to make your blender bottle stop smelling like ass forever.

Mixing this with water or milk is fine. Milk gives a more authentic “milkshake” as is the case with any protein shake.

I personally tend to have my protein shakes mixed with water however, especially when im in contest prep and looking for ways to keep my carbs lower.

It tastes good when mixed with water, and tastes awesome when poured over cereal or myprotein granola. Another way to keep carbs lower by eliminating milk, and still eating cereal.

There are over 50 flavours of impact whey isolate to pick from now. Some are awesome, some are good, and some are downright crap.

My recommendations for flavours to try would be;

  • Chocolate
  • Chocolate Mint
  • Chocolate Orange
  • Pecan Pie
  • Salted Caramel
  • Banana
  • Peanut Cookie

Id avoid the following flavours;

  • Blueberry
  • Raspberry
  • White Chocolate
  • Vanilla

Vanilla doesn’t taste bad, its just boring. The rest are all bad.

Cinnamon Danish tastes really nice when mixed into oats, or when baking with protein, but as a drink its not too great.

The flavours all come down to personal preference. Id recommend trying 1kg bags of new flavours, then when you find the ones you like – stock up on 5kg bags.


If you’re deciding between impact whey protein or isolate, there are a few things you should take into consideration. These are;

  • Budget
  • Stomach Issues

If you’d like to know what I use, it is Impact Whey Isolate.

Do you need to use isolate? No. But let me tell you a bit about my background.

Starting out bodybuilding on a budget as a teenager, I was a huge fan of true whey. It mixed well, tasted good, and had a solid macro profile. When VAT hit the UK supplements market, I looked into the difference between true whey and impact whey, in a bid to try and save money.

Impact Whey served me well for years, but then when I learned more about supplements, and got more serious about my workouts (particularly starting to compete as a bodybuilder), I realised the additional benefits of using a whey protein isolate over whey protein concentrate.

For me, paying an extra couple of quid for the additional benefits of impact whey isolate over a whey protein concentrate are well worth it;

  • Higher Protein Content
  • Easier Digestion
  • Increased Amino Acid Profile
  • Lower Fat Content
  • Lower Carb Content

Myprotein Impact Whey Isolate is more expensive that just Impact Whey. However if you use a Myprotein Discount Code, it brings the price down considerably, as you can quite often save up to 20% (or more) on Impact Whey Isolate.

If you don’t have any problems with lactose, and the additional calories from carbs and fat aren’t much of a concern then sticking with a whey protein concentrate won’t harm you in anyway. I take my training and supplementation very serious, as bodybuilding is my lifestyle, not just a hobby.

Depending upon your goals, and budget, Impact Whey Isolate may or may not outweigh your decision to stick with a whey protein concentrate such as impact whey.

Buy Impact Whey Isolate

You can pick up Impact Whey Isolate From Myprotein Here >

Remember to use a myprotein discount code in order to save some money on your total order.

Let me know what flavour you decide to go for to!

Adam Foster is an aspiring bodybuilder, and has been training since a teenager. As the founder of the website & youtube channel 'Shreddybrek' he shares his experiences and knowledge via informative videos and articles. Get in touch if you have any questions!

Posted in My Protein Supplement Reviews

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