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Gold Standard 100% Whey (908g) + Whipped Protein Bar (box) now only for £39.99!  31% savings!

Gold Standard 100% Isolate

  • Ultra-filtered for exceptional purity
  • 25 g of Pure Whey Protein Isolate per serving
  • Low sugar with 0.3 g
From £37.99

Product Overview

How we create GOLD STANDARD 100% ISOLATE™

We start by selecting only the highest quality whey proteins which undergo a series of sophisticated filtration processes to ‘isolate’ out excess fat and sugar. A portion of this Whey Protein Isolate is then hydrolysed – broken down into smaller chains of amino acids. The final product is a complete protein containing no more than 0.3 g of sugars, 0.4 g of fat and 83% of pure protein per serving. We put in the hard work to assure superior quality so you can focus on achieving your performance goals.


Get maximum results with minimal ingredients. Using a series of sophisticated separation processes, excess fat and sugars are removed so that 0.4 g of fat and 0.3 g of sugar remain. The result is a delicious, ultra-pure hydrolyzed whey protein isolate designed to get into your body rapidly, so your muscles can rebuild.


Whey protein isolate powder with sweetener


  • Ultra-filtered for exceptional purity

  • 25 g of Pure Whey Protein Isolate per serving
  • Low sugar with 0.3 g
  • Low fat with 0.4 g
  • 83% of pure protein per serving
  • 5.5 g of naturally occurring BCAAs
  • 4.3 g of naturally occurring Glutamine and Glutamic acid

Suggested Use

Add 30 g (1 rounded scoop) to 200 ml of cold water and mix.

Nutritional Information

Nutritional information will be shown when a flavour and/or size is selected.

Customer Reviews

Overall Rating (4.9)
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First time customer with ON...

Review by Mohammed Ali on Sep 10, 2021
I used to use a brand that was owned by MuscleTech but it no longer exists. I also found out that MuscleTech is now owned by the Chinese, so with all due respect, I was weary of the cutbacks and overall quality of the other products. Having done 'extensive' research and exhausting myself, I found that Optimum Nutrition was/is one of the best protein manufacturers in the market (if not the best). The money invested into R&D and the production itself is second to none... I bought the Vanilla flavoured Isolate Whey Protein and it tastes incredibly (as far as protein powders go!). It doesn't taste sickly and the texture and viscosity is just right. I'll be exploring their Creatine range next. Highly recommended from an experienced user and consumer of protein powders.

Best protein powder ever!

Review by Adam Ames on Sep 6, 2021
Great taste (not too sweet) and mixes well. I use this every day to meet my protein goals. Highly recommend!

Great tasting but a bit expensive

Review by Manish on Aug 27, 2021
Mixes well. Great tasting. Good way to consume protein.

Vanilla Whey Isolate

Review by Anonymous on Aug 24, 2021
Tastes great and pairs very well with plenty of other ingredients - banana, peanut butter, blueberries, etc. Also very good for those such as myself who are lactose intolerant.

ONly the best

Review by Kris on Aug 18, 2021
Always high quality

Gold Standard Isolate

Review by John on Aug 16, 2021
I have been unable to use whey products for many years due to casein intolerance. Gold Standard Isolate filters the casein out so well that I can now start the day each morning with it, giving me a great start to my daily protein needs. Very nice!

Excellent product

Review by Rohit on Aug 15, 2021
Really like the texture and taste of the strawberry flavour

Great 5 ⭐️

Review by Steven Wojo on Aug 14, 2021
Great protine I recommend

Tasty & Effective

Review by Robert on Jul 28, 2021
Great protein powder. Easy to digest, and taste great. Its mixes well with milk, water, or even meals. I can't recommend it more. This has become my protein powder of choice.

Whey Isolate Vanilla

Review by Liv on Jul 22, 2021
Yummy!! Easy to digest. I use it for pre and post workout. For a 50+ women it’s a game changer. I am finally getting sufficient protein to support muscles. Ox P.S. Teens will hijack your protein powder.

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