Oatein, 400 g
£16.99 for 400 g at Bio-Synergy. It carries more than one active ingredient, so it is not ranked against single-ingredient products. Each price below counts one ingredient only.
At one 25 g dose a day, this pack lasts 8 days. A month is 30 days, so twelve of them is not quite a year.
How we worked it out
- Servings: 400 ÷ 40 per serving = 10
- In the pack: 10 × 20 g = 200 g
- £16.99 ÷ 200 g × 25 g = £2.12 per 25 g protein
- A week £2.12 × 7 = £14.87 · a month × 30 = £63.71 · a year × 365 = £775.17
- 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.
How it compares: whey protein concentrate
All 160, ranked →
Ranked purely by price per 25 g protein. 54 combination products also contain protein powder.
On the label
- Protein powder · Whey concentrate
- 20 g per serving (stated on the label)
- Pack
- 400 g · 10 servings · 40 g a serving
- Cost per serving
- £1.70 (10 servings in the pack)
More label details
- Barcode
- 5034839004125
- Sold by
- Bio-Synergy
- What the listing says
- “Specifications: 400g” · “In every 40g serving” · “In every 40g serving, you get 20g protein”
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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: 40 g.
What you paid
Optional. At Bio-Synergy today: £16.99.
“Order by” allows 5 working days’ delivery from Bio-Synergy and your spare days.
Price history
No price change since 21 September 2026. Checked on 29 days, most recently 20 October 2026.
- Price at every check
- £16.99Bio-Synergy
- First recorded
- £16.9921 Sept
- Checked on
- 29 dayssince 21 Sept
- First checked at Bio-Synergy: £16.99
Questions about this product
How much does Activeman Oatein cost per 25 g protein?
£2.12 per 25 g protein, from £16.99 for 400 g at Bio-Synergy, checked on 20 October 2026.
How long does one pack last?
8 days at one 25 g dose. The pack holds 200 g in total.