UK retailer price comparison

Compare Whey Protein Prices UK

Compare recently checked Whey Protein offers from UK supplement retailers. We show the lowest known delivered total for each product when delivery is available, without estimating missing prices or nutrition.

Current coverage: 94 Whey Protein products, 480 recently checked offers from 9 retailers. 17 products have current offers from multiple retailers.

Quick decision

Your quickest answers, using only verified current data

One product can earn more than one answer. We show fewer cards when the evidence does not support three different products.

Best verified value: £0.92 per 25 g protein

BioTech USA

BioTech USA 100% Pure Whey 2.27kg

1 current retailer and 8 recently checked offers.

Offer checked 3 Nov 2026, 10:46

Current comparison

Whey Protein prices and retailer coverage

Latest retailer check: 3 Nov 2026, 13:03

Products with broader retailer coverage appear first. Within each product, recently checked offers are ordered by known delivered total. This is a coverage-first comparison, not a claim that the first product is nutritionally superior.

1. BioTech USA

BioTech USA Iso Whey Zero 908g

908 g · 36 verified servings · 21 g verified protein per serving

15 recently checked in-stock offers from eBay UK, 6 Pack Supplements, Whey Okay.

Offer checked 3 Nov 2026, 10:46

Lowest current delivered price

£42.49

Includes known delivery

Available at eBay UK

Delivered price / kg
£46.80
Delivered price / serving
£1.18
Cost / 25 g protein
£1.41
Compare this product

2. Reflex Nutrition

Reflex Nutrition Clear Whey Isolate 510g 17 Servings

510 g · 17 verified servings · 22 g verified protein per serving

7 recently checked in-stock offers from eBay UK, 6 Pack Supplements, Whey Okay.

Offer checked 3 Nov 2026, 10:46

Lowest current delivered price

£29.99

Includes known delivery

Available at eBay UK

Delivered price / kg
£58.80
Delivered price / serving
£1.76
Cost / 25 g protein
£2.00
Compare this product

3. Applied Nutrition

Applied Nutrition ISO-XP 1kg

1,000 g · 40 verified servings · 22.4 g verified protein per serving

12 recently checked in-stock offers from 6 Pack Supplements, Gladiator Nutrition.

Offer checked 3 Nov 2026, 10:46

Lowest current delivered price

£44.98

Includes known delivery

Available at 6 Pack Supplements

Delivered price / kg
£44.98
Delivered price / serving
£1.12
Cost / 25 g protein
£1.26
Compare this product

4. 7Nutrition

7Nutrition Whey Isolate 90 500g

500 g · 14 verified servings · 28 g verified protein per serving

7 recently checked in-stock offers from 6 Pack Supplements, Fit House.

Offer checked 3 Nov 2026, 10:46

Lowest current delivered price

£28.98

Includes known delivery

Available at 6 Pack Supplements

Delivered price / kg
£57.96
Delivered price / serving
£2.07
Cost / 25 g protein
£1.85
Compare this product

5. 7Nutrition

7Nutrition Whey Protein 80 500g

500 g · 14 verified servings · 27 g verified protein per serving

15 recently checked in-stock offers from 6 Pack Supplements.

Offer checked 3 Nov 2026, 10:46

Current available price

£24.98

Includes known delivery

Available at 6 Pack Supplements

Delivered price / kg
£49.96
Delivered price / serving
£1.78
Cost / 25 g protein
£1.65
Compare this product

6. 7Nutrition

7Nutrition Whey Protein 80 2kg

2,000 g · 57 verified servings · 27 g verified protein per serving

11 recently checked in-stock offers from 6 Pack Supplements.

Offer checked 3 Nov 2026, 10:46

Current available price

£62.98

Includes known delivery

Available at 6 Pack Supplements

Delivered price / kg
£31.49
Delivered price / serving
£1.10
Cost / 25 g protein
£1.02
Compare this product

7. BioTech USA

BioTech USA 100% Pure Whey 2.27kg

2,270 g · 71 verified servings · 21 g verified protein per serving

8 recently checked in-stock offers from 6 Pack Supplements.

Offer checked 3 Nov 2026, 10:46

Current available price

£54.98

Includes known delivery

Available at 6 Pack Supplements

Delivered price / kg
£24.22
Delivered price / serving
77.4p
Cost / 25 g protein
£0.92
Compare this product

8. BioTech USA

BioTech USA 100% Pure Whey 1kg

1,000 g · 32 verified servings · 21 g verified protein per serving

4 recently checked in-stock offers from 6 Pack Supplements.

Offer checked 3 Nov 2026, 10:46

Current available price

£34.98

Includes known delivery

Available at 6 Pack Supplements

Delivered price / kg
£34.98
Delivered price / serving
£1.09
Cost / 25 g protein
£1.30
Compare this product

9. 7Nutrition

7Nutrition Whey Isolate 90 1kg

1,000 g · 28 verified servings · 29 g verified protein per serving

3 recently checked in-stock offers from 6 Pack Supplements.

Offer checked 3 Nov 2026, 10:46

Current available price

£49.98

Includes known delivery

Available at 6 Pack Supplements

Delivered price / kg
£49.98
Delivered price / serving
£1.79
Cost / 25 g protein
£1.54
Compare this product

10. BioTech USA

BioTech USA Iso Whey Zero 500g

500 g · 20 verified servings · 21 g verified protein per serving

3 recently checked in-stock offers from 6 Pack Supplements.

Offer checked 3 Nov 2026, 10:46

Current available price

£24.98

Includes known delivery

Available at 6 Pack Supplements

Delivered price / kg
£49.96
Delivered price / serving
£1.25
Cost / 25 g protein
£1.49
Compare this product

11. BioTech USA

BioTech USA Iso Whey Zero 2.27kg

2,270 g · 72 verified servings · 21 g verified protein per serving

1 recently checked in-stock offer from 6 Pack Supplements.

Offer checked 3 Nov 2026, 10:46

Current available price

£74.98

Includes known delivery

Available at 6 Pack Supplements

Delivered price / kg
£33.03
Delivered price / serving
£1.04
Cost / 25 g protein
£1.24
Compare this product

How prices are compared

We use active, mapped, in-stock retailer offers checked within 24 hours. Where both the product price and delivery charge are known, the delivered total decides the lowest current offer for that product. An offer with unknown delivery cannot outrank one with a complete delivered total.

109 older or unusable in-stock offers are currently excluded. Prices and stock can change after the shown check time, so confirm the final amount at the retailer.

When value metrics are shown

Price per kilogram and cost per 25 g of protein appear only when the required package, serving and nutrition fields have been reviewed and marked as verified. Missing information is left blank rather than estimated from a product name or retailer description.

Whey Protein comparison questions

What is included in this comparison?

The page covers reviewed Whey Protein powders and whey-based blends in the SupplementScout catalogue. Plant, beef, collagen, egg and casein-only products are excluded even if a retailer placed them in a broad protein category.

Are concentrate, isolate and clear whey the same?

They are different product types and formulations. This page groups them as Whey Protein but keeps each canonical product and pack size separate so prices are not compared as if the products were identical.

Does the first product mean the best Whey Protein?

No. The order favours products with more current retailer coverage. SupplementScout does not make a quality or health ranking without evidence that supports it.

Why is a value calculation sometimes missing?

A current price can be valid even when package or nutrition data is incomplete. We still show the retailer comparison but hide any per-kilogram, per-serving or protein calculation that cannot be verified safely.

How often are prices checked?

Only offers checked within the last 24 hours are eligible for this page. Each product shows its latest check time, and stale prices are removed from the current ranking.

We only feature this comparison in search when it includes enough recently checked offers from multiple UK retailers. If coverage is temporarily limited, you can still use the page, but we will not present it as a complete market comparison.

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