Impact Whey Protein Powder 465g, Unflavoured (Milkshake)
£17.99 for 465 g at Myprotein. That works out at £1.32 per 25 g protein, which ranks it 82nd of the 160 whey protein concentrate products we price across 8 UK retailers.
At one 25 g dose a day, this pack lasts 14 days. A month is 30 days, so twelve of them is not quite a year.
How we worked it out
- Servings: 465 ÷ 30 per serving = 15.5
- In the pack: 15.5 × 22 g = 341 g
- £17.99 ÷ 341 g × 25 g = £1.32 per 25 g protein
- A week £1.32 × 7 = £9.23 · a month × 30 = £39.57 · a year × 365 = £481.40
- 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 Myprotein pack saves £1.45 a month at the same 25 g dose.
Ranked purely by price per 25 g protein. 54 combination products also contain protein powder.
On the label
- Protein powder · Whey concentrate
- 22 g per serving (stated on the label)
- Pack
- 465 g · 15.5 servings · 30 g a serving
- Cost per serving
- £1.16 (15.5 servings in the pack)
More label details
- Sold by
- Myprotein
- What the listing says
- “Unflavoured (Milkshake)” · “465g” · “15servings” · “Per 100g ; Per 30g” · “Protein ; 72g ; 22g” · “Whey Protein”
Add to your basket
View basketYour basket prices everything you take together: whole packs, delivery included, from as few websites as you like.
One 25 g dose is our comparison unit, not a recommendation.
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My stackSee when it runs out, the day to reorder by and what it costs you a day. Free, kept on this device.
Filled in from the label’s serving: 30 g.
What you paid
Optional. At Myprotein today: £17.99.
“Order by” allows 3 working days’ delivery from Myprotein and your spare days.
Price history
2 price changes since 23 September 2026. Checked on 19 days, most recently 20 October 2026.
- Lowest recorded
- £16.993 Oct
- Highest recorded
- £17.9913 Oct
- First recorded
- £17.9923 Sept
- Checked on
- 19 dayssince 23 Sept
- Up at Myprotein: £16.99 → £17.99 (+5.9%)
- Down at Myprotein: £17.99 → £16.99 (−5.6%)
- First checked at Myprotein: £17.99
Questions about this product
How much does Myprotein Impact Whey Protein Powder 465g cost per 25 g protein?
£1.32 per 25 g protein, from £17.99 for 465 g at Myprotein, checked on 20 October 2026.
Is it the cheapest whey protein concentrate in the UK?
No, it is 82nd of 160. 100% Protein at Protein Works works out at 59p per 25 g protein.
How long does one pack last?
14 days at one 25 g dose. The pack holds 341 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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