Pure Whey Isolate
by Bulk
Pure protein, minimal extras: filtered for maximum protein content with very low fat and carbs per serving.
- Up to 24g 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
Flavour pictures illustrate the taste, not the powder's colour or ingredients.
Best price
In stock£167.99
£4.20 / 100g
Secure retailer checkout
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Transparent protein profile
What's inside
Values per 100g, with the amount in one 30g serving
81g protein
24.3g per 30g serving with minimal filler
2g carbohydrates
Extremely low carbs - suitable for keto and low-carb diets
1g fat
0.2g per 30g serving - very lean
361 kcal
108 kcal per 30g serving
View full nutritional information
| Nutrient | Per 100g | Per serving (30g) |
|---|---|---|
| Protein | 81g | 24.3g |
| Calories | 361 kcal | 108 kcal |
| Carbohydrates | 2g | 0.6g |
| Fat | 0.5g | 0.2g |
Know when to buy
Price history
Lowest price on record, any flavour or size
£4.03/100g (£100.79 for 2.5kg on 27 Sept 2026)
4kg · all flavours · price per pack
- Bulklatest £167.99 (one check so far)
Quick answers
Is this right for you?
Who is it for?
Bulk Pure Whey 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 81g of protein per 100g (around 24g per 30g serving), Bulk Pure Whey Isolate sits at the higher end for a whey isolate product.
What else do you need to know?
Bulk Pure Whey Isolate is a whey isolate protein powder made by Bulk. It comes in 450g, 500g, 900g, 1kg, 2kg, 2.5kg, 4kg, 5kg sizes, and WheyWise tracks prices across 2 UK retailers so you can always find the best deal. 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 Bulk Pure Whey Isolate in the UK?
We refresh Bulk Pure Whey 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 Pure Whey Isolate contain per 100g?
Pure Whey Isolate contains 81g of protein per 100g, with 24.3g per 30g serving. It is a whey isolate product.
Is Bulk Pure Whey Isolate currently in stock?
At the last check, 51 out of 52 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
8 sizes · any flavour · cost per 100g for each
The 2.5kg works out at £4.20 per 100g. The 450g costs £5.33. Same powder, 1.3x the price per gram.
Where to buy in the UK
Any flavour · 4kg · 4 offers for this selection · sorted by cost per 100g
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