We earn commission on purchases made through our links. It never affects ranking: tables are ordered purely by price per dose, and no retailer or brand can pay for position.We earn commission when you buy through our links. It never affects the ranking. Full disclosure.

perdose
Updated

Home › Minerals › Selenium

TraceMinerals

Liquid Ionic Selenium, 59 ml

£12.99 for 59 ml at Healf. It carries more than one active ingredient, so it is not ranked against single-ingredient products. Each price below counts one ingredient only.

What it really costs, per 100 µg selenium9pOne 100 µg dose is our comparison unit for selenium. It is not a recommendation.
A day9p
A week64p
A month£2.75
A year£33.48

At one 100 µg dose a day, this pack lasts 5 months. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Selenium

  • Servings: 59 ÷ 1.25 per serving = 47.2
  • In the pack: 47.2 × 300 µg = 14.2 mg
  • £12.99 ÷ 14.2 mg × 100 µg = 9.17p per 100 µg selenium
  • A week 9.17p × 7 = 64p · a month × 30 = £2.75 · a year × 365 = £33.48
  • Amount per serving: stated on the label.

Magnesium

  • Servings: 59 ÷ 1.25 per serving = 47.2
  • In the pack: 47.2 × 20 mg = 944 mg
  • £12.99 ÷ 944 mg × 100 mg = £1.38 per 100 mg magnesium
  • A week £1.38 × 7 = £9.63 · a month × 30 = £41.28 · a year × 365 = £502.26
  • 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: other forms of selenium

All 10, ranked →
WeightWorldSelenium TabletsCheapest per 100 µg seleniumWeightWorld · 200 µg a serving · 62p a month · a pack lasts 2 years2p£14.99View at WeightWorld (opens in a new tab)
Selenium 200ug 240 TabletsHolland & Barrett · 200 µg a serving · £1.12 a month · a pack lasts 1.3 years4p£17.99View at Holland & Barrett (opens in a new tab)
Super Selenium ComplexHealf · 200 µg a serving · £1.19 a month · a pack lasts 7 months4p£7.96View at Healf (opens in a new tab)
This productHealf · 300 µg a serving · £2.75 a month · a pack lasts 5 months9pshown above

Ranked purely by price per 100 µg selenium. 120 combination products also contain selenium.

How it compares: magnesium blends and other forms

All 79, ranked →
ZipVitMagnesium 500mgCheapest per 100 mg magnesiumZipVit · 500 mg a serving · 33p a month · a pack lasts 4.9 years1p£19.99View at ZipVit (opens in a new tab)
Magnesium Glycinate X3Protein Works · 1.81 g a serving · 40p a month · a pack lasts 2.2 years1p£10.99View at Protein Works (opens in a new tab)
Magnesium CapsHealf · 500 mg a serving · 41p a month · a pack lasts 1.4 years1p£6.75View at Healf (opens in a new tab)
This productHealf · 20 mg a serving · £41.28 a month · a pack lasts 9 days£1.38shown above

Ranked purely by price per 100 mg magnesium. 236 combination products also contain magnesium.

On the label

Selenium · Other forms
300 µg per serving (stated on the label)
Magnesium · Blends and other forms
20 mg per serving (stated on the label)
Pack
59 ml · 47.2 servings · 1.25 ml a serving
Cost per serving
28p (47.2 servings in the pack)
More label details
Sold by
Healf
What the listing says
“59ml” · “Servings Per Container: About 48” · “25 drops (1.25mL)” · “Magnesium (from CTM) ; 20 mg”
Ingredients

ConcenTrace® Trace Mineral (CTM), Chloride (from CTM), Magnesium (from CTM), Selenium (as Sodium Selenate), Purified Water, Acidity Regulator (Non-GMO Citric Acid), Preservative (Potassium Benzoate (For Freshness))

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

Is something wrong? Tell us

Add to your basket

View basket

Your basket prices everything you take together: whole packs, delivery included, from as few websites as you like.

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
£12.99Healf
First recorded
£12.991 Oct
Checked on
20 dayssince 1 Oct
Pack price at each check.
  1. First checked at Healf: £12.99

Questions about this product

How much does Trace Liquid Ionic Selenium cost per 100 mg magnesium?

£1.38 per 100 mg magnesium, from £12.99 for 59 ml at Healf, checked on 20 October 2026.

How long does one pack last?

9 days at one 100 mg dose. The pack holds 944 mg in total.

How much does Trace Liquid Ionic Selenium cost per 100 µg selenium?

9p per 100 µg selenium, from £12.99 for 59 ml at Healf, checked on 20 October 2026.

How long does one pack last?

5 months at one 100 µg dose. The pack holds 14.2 mg in total.

About Trace

All 26 Trace products, priced per dose

More from Trace

Keep comparing

All seleniumEvery form, cheapest per 100 µg selenium firstOther forms of selenium10 products rankedSelenium guideWhat it is, why people take it, how the forms differTraceAll 26 products from this brand, per doseMineralsEverything else we price in this categorySelenium price historyEvery selenium product's price per dose and price historyBuild a basketThe cheapest way to buy several at onceHow we compareWhere every number on this page comes from