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Seeking HealthVitamins

Vitamin D3 Drops, 30 ml

£17.49 for 30 ml at Healf. That works out at 1p per 1,000 IU, which ranks it 195th of the 207 vitamin D3 products we price across 20 UK retailers.

What it really costs, per 1,000 IU1pOne 1,000 IU dose is our comparison unit for vitamin D3. It is not a recommendation.
A day1p
A week7p
A month29p
A year£3.55

At one 1,000 IU dose a day, this pack lasts 4.9 years. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

  • In the pack: 900 × 2,000 IU = 1,800,000 IU
  • £17.49 ÷ 1,800,000 IU × 1,000 IU = 0.972p per 1,000 IU
  • A week 0.972p × 7 = 7p · a month × 30 = 29p · a year × 365 = £3.55
  • 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 vitamin D3

All 207, ranked →
D3 + K2 SprayHealf · 800 IU a serving · £26.74 a month · a pack lasts 24 days89p£21.39View at Healf (opens in a new tab)
Curcumin & Vitamin D3 CapsulesMyprotein · 440 IU a serving · £27.25 a month · a pack lasts 13 days91p£11.99View at Myprotein (opens in a new tab)
Rise & Shine Omega 3 with Vitamin D3 CapsulesHealf · 1,000 IU a serving · £33.95 a month · a pack lasts 30 days£1.13£33.95View at Healf (opens in a new tab)
huxleyHuxD3 20,000iu Vitamin D3 ColecalciferolVitamin Planet · 20,000 IU a serving · 23p a month · a pack lasts 1.6 years1p£4.50View at Vitamin Planet (opens in a new tab)
huxleyHuxD3 20,000iu Vitamin D3 ColecalciferolVitamin Planet · 20,000 IU a serving · 23p a month · a pack lasts 1.1 years1p£3.10View at Vitamin Planet (opens in a new tab)
This productHealf · 2,000 IU a serving · 29p a month · a pack lasts 4.9 years1pshown above

Ranked purely by price per 1,000 IU. 439 combination products also contain vitamin D3.

On the label

Vitamin D3 · Vitamin D3
2,000 IU per serving (stated on the label)
Pack
30 ml · 900 servings
Cost per serving
2p (900 servings in the pack)
More label details
Sold by
Healf
What the listing says
“30ml” · “Servings Per Container: 900” · “Vitamin D (as Cholecalciferol) (2000 IU) ; 50 mcg”
Ingredients

Vitamin D (as Cholecalciferol) (2000 IU), Olive Oil

From the Healf listing. Check the pack itself if you have an allergy: labels mark allergens in bold.

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One 1,000 IU dose is our comparison unit, not a recommendation.

Price history

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

Price at every check
£17.49Healf
First recorded
£17.491 Oct
Checked on
1 daysince 1 Oct

Checked once so far, on 1 October 2026.

  1. First checked at Healf: £17.49

Questions about this product

How much does Seeking Health Vitamin D3 Drops cost per 1,000 IU?

1p per 1,000 IU, from £17.49 for 30 ml at Healf, checked on 30 September 2026.

Is it the cheapest vitamin D3 in the UK?

No, it is 195th of 207. High-Strength Vitamin D3 Tablets at WeightWorld works out at 1p per 1,000 IU.

How long does one pack last?

4.9 years at one 1,000 IU dose. The pack holds 1,800,000 IU in total.

About Seeking Health

All 49 Seeking Health products, priced per dose

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