Whey Protein Isolate
by Purition
Pure protein, minimal extras: filtered for maximum protein content with very low fat and carbs per serving.
- Up to 23g protein per serving
- Low fat - under 3g per 100g
- Low carb - suitable for keto and cutting diets
- Extra filtered for reduced lactose
- For shakes, smoothies, baking and more
Best price
In stock£34.00
£4.86 / 100g
Secure retailer checkout
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Transparent protein profile
What's inside
Values per 100g, with the amount in one 25g serving
93g protein
23.3g per 25g serving with minimal filler
3g carbohydrates
Extremely low carbs - suitable for keto and low-carb diets
0g fat
0g per 25g serving - very lean
368 kcal
92 kcal per 25g serving
View full nutritional information
| Nutrient | Per 100g | Per serving (25g) |
|---|---|---|
| Protein | 93g | 23.3g |
| Calories | 368 kcal | 92 kcal |
| Carbohydrates | 2.5g | 0.6g |
| Fat | 0g | 0g |
Know when to buy
Price history
Lowest price on record, any flavour or size
£4.86/100g (£34.00 for 700g on 18 Aug 2026)
700g · all flavours · price per pack
- Amazon UKlatest £34.00, lowest £34.00, highest £34.00 in the last 90 days
Quick answers
Is this right for you?
Who is it for?
Purition Whey Protein Isolate is designed for athletes, lean-bulk dieters, and anyone who wants maximum protein with minimal fat and carbs. Whey isolate is also a better option for people with mild lactose sensitivity, since the extra filtration removes most of the lactose.
What can you expect?
A lean, fast-absorbing protein with very low fat and carbohydrate content. Whey isolate goes through extra filtration to deliver 85-95% protein purity, which means more protein per scoop and fewer calories from filler. Expect quick absorption, making it ideal straight after a workout. With 93g of protein per 100g (around 23g per 25g serving), Purition Whey Protein Isolate sits at the higher end for a whey isolate product.
What else do you need to know?
Purition Whey Protein Isolate is a whey isolate protein powder made by Purition. It comes in 500g, 700g sizes. Every price on WheyWise is read from the retailer’s own page and re-checked daily and sorted by cost per 100g, so you can see both the cheapest option and how current it is. All links to Amazon and retailer sites are affiliate links - this is how WheyWise stays free.
Frequently asked questions
Where is the cheapest place to buy Purition Whey Protein Isolate in the UK?
We refresh Purition Whey Protein Isolate pricing daily from Amazon UK and show the fetch time next to every figure. If no verified price is showing above, we do not currently hold one we would stand behind, and the buy button will take you to the live listing to check.
How much protein does Whey Protein Isolate contain per 100g?
Whey Protein Isolate contains 93g of protein per 100g, with 23.3g per 25g serving. It is a whey isolate product.
Is Purition Whey Protein Isolate currently in stock?
At the last check, 2 out of 2 tracked variants were in stock. Stock status carries the same fetch time as the price shown above, so check the retailer listing before ordering.
Pick your pack
2 sizes · any flavour · cost per 100g for each
The 700g works out at £4.86 per 100g. The 500g costs £6.80. Same powder, 1.4x the price per gram.
Where to buy in the UK
700g · 1 offer for this selection · sorted by cost per 100g
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