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Minerals

Selenium, 180 capsules

£11.19 for 180 capsules at Healf. That works out at 3p per 100 µg selenium, which ranks it 1st of the 10 selenium selenomethionine products we price across 2 UK retailers.

What it really costs, per 100 µg selenium3pOne 100 µg dose is our comparison unit for selenium. It is not a recommendation.

A day3p

A week22p

A month93p

A year£11.35

At one 100 µg dose a day, this pack lasts 12 months. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Servings: 180 ÷ 1 per serving = 180
In the pack: 180 × 200 µg = 36 mg
£11.19 ÷ 36 mg × 100 µg = 3.11p per 100 µg selenium
A week 3.11p × 7 = 22p · a month × 30 = 93p · a year × 365 = £11.35
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: selenium selenomethionine

All 10, ranked →

This productCheapest per 100 µg seleniumHealf · 200 µg a serving · 93p a month · a pack lasts 12 months3pshown above

SeleniumHealf · 200 µg a serving · 96p a month · a pack lasts 6 months3p£5.78View at Healf

Ranked purely by price per 100 µg selenium. 80 combination products also contain selenium.

Pack sizes

Pack	Price	Per dose	A year
180 capsulesthis pack	£11.19	3p	£11.35
90 capsules	£5.78	3p	£11.72

This pack is the cheapest of the 2 sizes per dose.

On the label

Selenium · Selenomethionine: 200 µg per serving (stated on the label)
Pack: 180 capsules · 180 servings · 1 capsule(s) a serving
Cost per serving: 6p (180 servings in the pack)

More label details

Sold by: Healf
What the listing says: “180 caps” · “Serving Size: 1 Veg Capsule” · “Selenium (Elemental) (from L-Selenomethionine) ; 200 mcg” · “from 40 mg L-Selenomethionine”

Ingredients

Selenium (Elemental) (from 40 mg L-Selenomethionine), Rice Flour, Hypromellose (Cellulose Capsule), Stearic Acid (Vegetable Source)

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

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Daily doseµgFordays

One 100 µg dose is our comparison unit, not a recommendation.

Price history

2 price changes since 1 October 2026. Checked on 20 days, most recently 20 October 2026.

Lowest recorded: £10.991 Oct
Highest recorded: £11.9817 Oct
First recorded: £10.991 Oct
Checked on: 20 dayssince 1 Oct

Pack price at each check.

20 Oct Down at Healf: £11.98 → £11.19 (−6.6%)
17 Oct Up at Healf: £10.99 → £11.98 (+9.0%)
1 OctFirst checked at Healf: £10.99

Questions about this product

How much does NOW Foods Selenium cost per 100 µg selenium?

3p per 100 µg selenium, from £11.19 for 180 capsules at Healf, checked on 20 October 2026.

Is it the cheapest selenium selenomethionine in the UK?

Yes. Of the 10 we price across 2 UK retailers, this is the cheapest per 100 µg selenium.

How long does one pack last?

12 months at one 100 µg dose. The pack holds 36 mg in total.

About NOW Foods

All 109 NOW Foods products, priced per dose

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