Core Nutritionals


  • £39.99
  • £49.99

DEAL OF THE MONTH | Save 20% OFF this product

If the post-workout environment were a jungle, whey protein isolate (WPI) would be the lion – its king. Newer proteins enter into the market, receive fanfare and applause, and then inevitably fall out of favor. WPI, however, is the U.S. Dollar, Greenwich Mean Time, or Michael Jordan’s dunking prowess: it is the reference standard against which everything else is measured. The success or efficacy of all other proteins is gauged relative to what the one true king, WPI, has previously done.

So, given WPI’s long-standing Elvis status, there is simply no way it could be improved on. Right? Wrong. Amino-filled and/or spiked, low quality, low purity WPI formulas still run rampant on the market – robbing consumers of what they should be receiving, and exchanging the king for a jester.

That has never been Core’s approach, and it never will be. With Core ISO, we have developed the purest, highest-quality, least-adulterated WPI product on the market. We have taken the highest purity, non-instantiated, non-soy, non-GMO whey protein isolate available, and essentially added nothing to it: we have added no sugars, making it the perfect versatile protein; and we have added no artificial colors, meaning you can feel good about drinking it.

Did we mention we use natural flavoring? And Oh. My. Goodness, what flavoring it is! While the bitterness of WPI overcomes most brand’s offering, and results in a dull, palette-killing powder you need to choke down, Core ISO tastes like a gourmet pastry chef set up shop, on your tongue, and started making soufflés like nobody’s business.

Core ISO is, simply put, the pinnacle. Our protein’s quality and level of purity transcends it to the level of being a necessity; a part of your supplement and training setup that is simply assumed to be there, because it must be there. So, if you are already taking or planning to use protein, why not use the version of the standard that rises above the rest?

- 24g cold-processed microfiltered non-GMO whey protein isolate

- 110 calories per serving 

- Gluten free

- Lactose free

- No artificial flavours

- No artificial colours

- No sugars

- No Fillers 



Customer Reviews

Based on 11 reviews
Expected more out of it

It is very good quality isolate protein , no bloating , easy to mix and easy to digest, but i've tried a lot of proteins, and i do mean a lot. .
This one was very dissappointing, i got peanut butter toffee flavor which was really overhyped, and i was really excited to try it , but man its bad, mixing it with water tastes like bland peanut powder, nothing else , no toffee no sweetness nothing. .
Price is good you are paying around 1 pound per scoop of pure isolate but next time i think i'll try something else.

A bit disappointed to be honest.

Mixes okay and taste is okay but expected a bit better, to be totally honest.

Core ISO

Some of the best tasting ISO there is. All flavours are excellent but pumpkin spice is number one. It has been my go to post work out consistently mixed with egg whites as a thickener. Can’t get better

Amazing Taste - Great Product

Very happy with my purchase and overall quality of the powder. Love the taste and will for sure go for another one and still from A-List


Easy to mix, super digest & flavor delicious