Vitamin D3 + K2 Drops
£18.89 for 900 servings at Healf. That works out at 4p per 1,000 IU, which ranks it 198th of the 207 vitamin D3 products we price across 20 UK retailers.
At one 1,000 IU dose a day, this pack lasts 1.2 years. A month is 30 days, so twelve of them is not quite a year.
How we worked it out
Vitamin D3
- In the pack: 900 × 500 IU = 450,000 IU
- £18.89 ÷ 450,000 IU × 1,000 IU = 4.2p per 1,000 IU
- A week 4.2p × 7 = 29p · a month × 30 = £1.26 · a year × 365 = £15.32
- Amount per serving: stated on the label.
Vitamin K2
- In the pack: 900 × 50 µg = 45 mg
- £18.89 ÷ 45 mg × 5 mg = £2.10 per 5 mg
- A week £2.10 × 7 = £14.69 · a month × 30 = £62.97 · a year × 365 = £766.09
- 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 →
Switching to the Vitamin Planet pack saves £1.03 a month at the same 1,000 IU dose.
Ranked purely by price per 1,000 IU. 439 combination products also contain vitamin D3.
Cheaper vitamin K2 MK-4
Compare every product in this form →
Switching to the Healf pack saves £55.41 a month at the same 5 mg dose.
Ranked purely by price per 5 mg. 11 combination products also contain vitamin K2.
On the label
- Vitamin D3 · Vitamin D3
- 500 IU per serving (stated on the label)
- Vitamin K2 · MK-4
- 50 µg per serving (stated on the label)
- Pack
- 900 servings · 1 drop(s) a serving
- Cost per serving
- 2p (900 servings in the pack)
More label details
- Sold by
- Healf
- What the listing says
- “Servings Per Container: 900” · “Serving Size: 1 Drop” · “Vitamin D3 (as Cholecalciferol) ; 12.5 mcg ; 250%”
Ingredients
Vitamin K2 (as Menaquinone-4), Vitamin D3 (as Cholecalciferol), Extra Virgin 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.
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Filled in from the label’s serving: 1 drop.
What you paid
Optional. At Healf today: £18.89.
“Order by” allows 3 working days’ delivery from Healf and your spare days.
Price history
No price change since 1 October 2026. Checked on 1 day, most recently 1 October 2026.
- Price at every check
- £18.89Healf
- First recorded
- £18.891 Oct
- Checked on
- 1 daysince 1 Oct
Checked once so far, on 1 October 2026.
- First checked at Healf: £18.89
Questions about this product
How much does Seeking Health Vitamin D3 + K2 Drops cost per 1,000 IU?
4p per 1,000 IU, from £18.89 for 900 servings at Healf, checked on 30 September 2026.
Is it the cheapest vitamin D3 in the UK?
No, it is 198th of 207. High-Strength Vitamin D3 Tablets at WeightWorld works out at 1p per 1,000 IU.
How long does one pack last?
1.2 years at one 1,000 IU dose. The pack holds 450,000 IU in total.
How much does Seeking Health Vitamin D3 + K2 Drops cost per 5 mg?
£2.10 per 5 mg, from £18.89 for 900 servings at Healf, checked on 30 September 2026.
Is it the cheapest vitamin K2 MK-4 in the UK?
No, it is 4th of 4. Vitamin K2 at Healf works out at 25p per 5 mg.
How long does one pack last?
9 days at one 5 mg dose. The pack holds 45 mg in total.
About Seeking Health
All 49 Seeking Health products, priced per dose
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