Whey Protein Isolate, 5 sachets
£16.99 for 5 sachets at Healf. That works out at £3.03 per 25 g protein, which ranks it 105th of the 123 whey protein isolate products we price across 6 UK retailers.
At one 25 g dose a day, this pack lasts 6 days. A month is 30 days, so twelve of them is not quite a year.
How we worked it out
- Servings: 5 ÷ 1 per serving = 5
- In the pack: 5 × 28 g = 140 g
- £16.99 ÷ 140 g × 25 g = £3.03 per 25 g protein
- A week £3.03 × 7 = £21.24 · a month × 30 = £91.02 · a year × 365 = £1107.38
- 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 →
Switching to the Optimum Nutrition pack saves £15.02 a month at the same 25 g dose.
Ranked purely by price per 25 g protein. 53 combination products also contain protein powder.
On the label
- Protein powder · Whey isolate
- 28 g per serving (stated on the label)
- Pack
- 5 sachets · 5 servings · 1 sachet(s) a serving
- Cost per serving
- £3.40 (5 servings in the pack)
More label details
- Claimed on the listing
- gluten-free
- Sold by
- Healf
- What the listing says
- “5 single serv” · “5 Servings Per Container” · “Serving size: 1 Stick Pack” · “Protein ; 28g”
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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: 1 sachet.
What you paid
Optional. At Healf today: £16.99.
“Order by” allows 3 working days’ delivery from Healf and your spare days.
Price history
No price change since 1 October 2026. Checked on 20 days, most recently 20 October 2026.
- Price at every check
- £16.99Healf
- First recorded
- £16.991 Oct
- Checked on
- 20 dayssince 1 Oct
- First checked at Healf: £16.99
Questions about this product
How much does Transparent Labs Whey Protein Isolate cost per 25 g protein?
£3.03 per 25 g protein, from £16.99 for 5 sachets at Healf, checked on 20 October 2026.
Is it the cheapest whey protein isolate in the UK?
No, it is 105th of 123. Impact Whey Isolate Powder at Myprotein works out at 83p per 25 g protein.
How long does one pack last?
6 days at one 25 g dose. The pack holds 140 g in total.
About Transparent Labs
All 59 Transparent Labs products, priced per dose
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