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MyproteinSports & performance

Impact Whey Protein Milkshake, Banana Milkshake, 870 g

£29.99 for 870 g at Myprotein. That works out at £1.25 per 25 g protein, which ranks it 33rd of the 94 whey protein blend products we price across 5 UK retailers.

What it really costs, per 25 g protein£1.25One 25 g dose is our comparison unit for protein powder. It is not a recommendation.
A day£1.25
A week£8.75
A month£37.49
A year£456.10

At one 25 g dose a day, this pack lasts 24 days. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

  • Servings: 870 ÷ 29 per serving = 30
  • In the pack: 30 × 20 g = 600 g
  • £29.99 ÷ 600 g × 25 g = £1.25 per 25 g protein
  • A week £1.25 × 7 = £8.75 · a month × 30 = £37.49 · a year × 365 = £456.10
  • 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 blend

All 94, ranked →
Whey ProteinHealf · 24 g a serving · £35.89 a month · a pack lasts 29 days£1.20£34.45View at Healf (opens in a new tab)
Whey ProteinHealf · 24 g a serving · £35.89 a month · a pack lasts 29 days£1.20£34.45View at Healf (opens in a new tab)
Impact Whey Protein MilkshakeMyprotein · 20 g a serving · £37.49 a month · a pack lasts 24 days£1.25£29.99View at Myprotein (opens in a new tab)
Impact Whey Protein MilkshakeMyprotein · 20 g a serving · £37.49 a month · a pack lasts 24 days£1.25£29.99View at Myprotein (opens in a new tab)
Impact Whey Protein MilkshakeMyprotein · 20 g a serving · £37.49 a month · a pack lasts 24 days£1.25£29.99View at Myprotein (opens in a new tab)
This productMyprotein · 20 g a serving · £37.49 a month · a pack lasts 24 days£1.25shown above

Switching to the Healf pack saves £1.60 a month at the same 25 g dose.

Ranked purely by price per 25 g protein. 24 combination products also contain protein powder.

Pack sizes

PackPricePer doseA year
120 servings£107.49£1.12£408.69
2.61 kg£82.99£1.15£420.71
870 gthis pack£29.99£1.25£456.10
435 g£17.99£1.50£547.20

At one 25 g dose a day, the 120 servings pack costs £47.41 less a year than this one.

On the label

Protein powder · Whey blend
20 g per serving (stated on the label)
Pack
870 g · 30 servings · 29 g a serving
Cost per serving
£1.00 (30 servings in the pack)
More label details
Claimed on the listing
vegetarian
Barcode
5059883594958
Sold by
Myprotein
What the listing says
“870G” · “30servings” · “Per 29g” · “Protein ; 69g ; 20g”
Ingredients

Protein Blend (84%) (Whey Protein Concentrate (Milk), Grass-Fed Milk Protein Isolate) (contains Emulsifiers (Soya Lecithin, Sunflower Lecithin)), Skimmed Milk Powder, Natural Flavourings, Thickener (Guar Gum), Curcuma Oil Extract, Sweetener (Sucralose), Concentrated Banana Juice.

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

1 price change since 3 October 2026. Checked on 18 days, most recently 20 October 2026.

Lowest recorded
£28.493 Oct
Highest recorded
£29.9913 Oct
First recorded
£28.493 Oct
Checked on
18 dayssince 3 Oct
Pack price at each check.
  1. Up at Myprotein: £28.49 → £29.99 (+5.3%)
  2. First checked at Myprotein: £28.49

Questions about this product

How much does Myprotein Impact Whey Protein Milkshake cost per 25 g protein?

£1.25 per 25 g protein, from £29.99 for 870 g at Myprotein, checked on 20 October 2026.

Is it the cheapest whey protein blend in the UK?

No, it is 33rd of 94. Origin Protein (with Creatine) at Myprotein works out at 74p per 25 g protein.

How long does one pack last?

24 days at one 25 g dose. The pack holds 600 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.

All 558 Myprotein products, priced per doseVisit Myprotein (opens in a new tab)

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