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Biotics ResearchVitamins

Bio-K-Mulsion®

£31.82 for 750 servings at Healf. That works out at 1p per 100 µg, which ranks it 1st of the 3 vitamin K1 products we price across 1 UK retailer.

What it really costs, per 100 µg1pOne 100 µg dose is our comparison unit for vitamin K1. It is not a recommendation.
A day1p
A week6p
A month25p
A year£3.10

At one 100 µg dose a day, this pack lasts 10.3 years. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

  • In the pack: 750 × 500 µg = 375 mg
  • £31.82 ÷ 375 mg × 100 µg = 0.849p per 100 µg
  • A week 0.849p × 7 = 6p · a month × 30 = 25p · a year × 365 = £3.10
  • 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.

How it compares: vitamin K1

All 3, ranked →
This productCheapest per 100 µgHealf · 500 µg a serving · 25p a month · a pack lasts 10.3 years1pshown above
Vitamin KHealf · 1 mg a serving · £1.20 a month · a pack lasts 1.6 years4p£23.99View at Healf (opens in a new tab)

Ranked purely by price per 100 µg. 22 combination products also contain vitamin K1.

On the label

Vitamin K1 · Vitamin K1
500 µg per serving (stated on the label)
Pack
750 servings · 0.04 ml a serving
Cost per serving
4p (750 servings in the pack)
More label details
Sold by
Healf
What the listing says
“Servings Per Container: 750” · “1 Drop (0.04mL)” · “Vitamin K (as K1-phytonadione) ; 500 mcg”
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One 100 µg dose is our comparison unit, not a recommendation.

Price history

No price change since 1 October 2026. Checked on 20 days, most recently 20 October 2026.

Price at every check
£31.82Healf
First recorded
£31.821 Oct
Checked on
20 dayssince 1 Oct
Pack price at each check.
  1. First checked at Healf: £31.82

Questions about this product

How much does Biotics Research Bio-K-Mulsion® cost per 100 µg?

1p per 100 µg, from £31.82 for 750 servings at Healf, checked on 20 October 2026.

Is it the cheapest vitamin K1 in the UK?

Yes. Of the 3 we price across 1 UK retailer, this is the cheapest per 100 µg.

How long does one pack last?

10.3 years at one 100 µg dose. The pack holds 375 mg in total.

About Biotics Research

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