Impact Whey Protein Powder, Dark Chocolate, 870 g
£32.99 for 870 g at Myprotein. That works out at £1.37 per 25 g protein, which ranks it 150th of the 160 whey protein concentrate products we price across 8 UK retailers.
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
- £32.99 ÷ 600 g × 25 g = £1.37 per 25 g protein
- A week £1.37 × 7 = £9.62 · a month × 30 = £41.24 · a year × 365 = £501.72
- 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 concentrate
All 160, ranked →
Switching to the Reflex Nutrition pack saves £3.74 a month at the same 25 g dose.
Ranked purely by price per 25 g protein. 54 combination products also contain protein powder.
Pack sizes
| Pack | Price | Per dose | A year |
|---|---|---|---|
| 870 gthis pack | £32.99 | £1.37 | £501.72 |
| 435 g | £19.49 | £1.62 | £592.82 |
This pack is the cheapest of the 2 sizes per dose.
On the label
- Protein powder · Whey concentrate
- 20 g per serving (stated on the label)
- Pack
- 870 g · 30 servings · 29 g a serving
- Cost per serving
- £1.10 (30 servings in the pack)
More label details
- Claimed on the listing
- vegetarian
- Barcode
- 5059883569895
- Sold by
- Myprotein
- What the listing says
- “870G” · “30servings” · “Per 29g” · “Protein ; 69g ; 20g”
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One 25 g dose is our comparison unit, not a recommendation.
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Filled in from the label’s serving: 29 g.
What you paid
Optional. At Myprotein today: £32.99.
“Order by” allows 3 working days’ delivery from Myprotein and your spare days.
Price history
No price change since 3 October 2026. Checked on 1 day, most recently 3 October 2026.
- Price at every check
- £32.99Myprotein
- First recorded
- £32.993 Oct
- Checked on
- 1 daysince 3 Oct
Checked once so far, on 3 October 2026.
- First checked at Myprotein: £32.99
Questions about this product
How much does Myprotein Impact Whey Protein Powder cost per 25 g protein?
£1.37 per 25 g protein, from £32.99 for 870 g at Myprotein, checked on 2 October 2026.
Is it the cheapest whey protein concentrate in the UK?
No, it is 150th of 160. 100% Protein at Protein Works works out at 59p 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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