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MyproteinSports & performance

Impact Whey Isolate Powder, Vanilla, 2.7 kg

£135.49 for 2.7 kg at Myprotein. That works out at £1.51 per 25 g protein, which ranks it 21st of the 123 whey protein isolate products we price across 6 UK retailers.

What it really costs, per 25 g protein£1.51One 25 g dose is our comparison unit for protein powder. It is not a recommendation.
A day£1.51
A week£10.54
A month£45.16
A year£549.49

At one 25 g dose a day, this pack lasts 3 months. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

  • Servings: 2700 ÷ 30 per serving = 90
  • In the pack: 90 × 25 g = 2,250 g
  • £135.49 ÷ 2,250 g × 25 g = £1.51 per 25 g protein
  • A week £1.51 × 7 = £10.54 · a month × 30 = £45.16 · a year × 365 = £549.49
  • Amount per serving: stated on the label.

The standard dose is a comparison unit, not a recommendation. Always confirm the price on the retailer's site. How we compare everything.

Cheaper whey protein isolate

All 123, ranked →
Clear Whey Protein Powder 500gMyprotein · 20 g a serving · £44.98 a month · a pack lasts 16 days£1.50£23.99View at Myprotein (opens in a new tab)
Clear Diet Whey Protein Protein 500g Mixed Berry BurstProtein Works · 20 g a serving · £44.98 a month · a pack lasts 16 days£1.50£23.99View at Protein Works (opens in a new tab)
Clear Diet Whey Protein Protein 500g Blue RaspberryProtein Works · 20 g a serving · £44.98 a month · a pack lasts 16 days£1.50£23.99View at Protein Works (opens in a new tab)
Impact Whey Isolate PowderMyprotein · 25 g a serving · £45.16 a month · a pack lasts 3 months£1.51£135.49View at Myprotein (opens in a new tab)
Impact Whey Isolate PowderMyprotein · 25 g a serving · £45.16 a month · a pack lasts 3 months£1.51£135.49View at Myprotein (opens in a new tab)
This productMyprotein · 25 g a serving · £45.16 a month · a pack lasts 3 months£1.51shown above

Switching to the Myprotein pack saves 18p a month at the same 25 g dose.

Ranked purely by price per 25 g protein. 53 combination products also contain protein powder.

Pack sizes

PackPricePer doseA year
4.5 kg£217.49£1.45£529.23
2.7 kgthis pack£135.49£1.51£549.49
900 g£48.99£1.63£596.04
450 g£29.49£1.97£717.59

At one 25 g dose a day, the 4.5 kg pack costs £20.26 less a year than this one.

On the label

Protein powder · Whey isolate
25 g per serving (stated on the label)
Pack
2.7 kg · 90 servings · 30 g a serving
Cost per serving
£1.51 (90 servings in the pack)
More label details
Claimed on the listing
vegetarian
Barcode
5059883571690
Sold by
Myprotein
What the listing says
“2.7kg” · “90servings” · “Per 30g” · “Protein ; 82g ; 25g”
Ingredients

Whey Protein Isolate (Milk) (96%) (contains Emulsifiers (Soya Lecithin, Sunflower Lecithin)), Flavouring, Sweetener (Sucralose).

From the Myprotein listing. Check the pack itself if you have an allergy: labels mark allergens in bold.

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One 25 g dose is our comparison unit, not a recommendation.

Price history

No price change since 3 October 2026. Checked on 14 days, most recently 20 October 2026.

Price at every check
£135.49Myprotein
First recorded
£135.493 Oct
Checked on
14 dayssince 3 Oct
Pack price at each check.
  1. First checked at Myprotein: £135.49

Questions about this product

How much does Myprotein Impact Whey Isolate Powder cost per 25 g protein?

£1.51 per 25 g protein, from £135.49 for 2.7 kg at Myprotein, checked on 20 October 2026.

Is it the cheapest whey protein isolate in the UK?

No, it is 21st of 123. Impact Whey Isolate Powder at Myprotein works out at 83p per 25 g protein.

How long does one pack last?

3 months at one 25 g dose. The pack holds 2,250 g in total.

About Myprotein

Founded 2004 · Manchester, England · Part of THG plc

Myprotein is a sports nutrition brand founded in 2004 by Oliver Cookson and bought in 2011 by The Hut Group, now the London-listed THG plc. It is based in Manchester and is part of THG's nutrition division.

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