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 › Iron

Seeking HealthMinerals

Optimal Iron With Cofactors, 90 capsules

£13.99 for 90 capsules 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 14 mg iron8pOne 14 mg dose is our comparison unit for iron. It is not a recommendation.
A day8p
A week53p
A month£2.25
A year£27.39

At one 14 mg dose a day, this pack lasts 6 months. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Iron

  • Servings: 90 ÷ 1 per serving = 90
  • In the pack: 90 × 29 mg = 2.61 g
  • £13.99 ÷ 2.61 g × 14 mg = 7.5p per 14 mg iron
  • A week 7.5p × 7 = 53p · a month × 30 = £2.25 · a year × 365 = £27.39
  • Amount per serving: stated on the label.

Betaine HCl

  • Servings: 90 ÷ 1 per serving = 90
  • In the pack: 90 × 75 mg = 6.75 g
  • £13.99 ÷ 6.75 g × 650 mg = £1.35 per 650 mg
  • A week £1.35 × 7 = £9.43 · a month × 30 = £40.42 · a year × 365 = £491.72
  • Amount per serving: stated on the label.

Biotin

  • Servings: 90 ÷ 1 per serving = 90
  • In the pack: 90 × 500 µg = 45 mg
  • £13.99 ÷ 45 mg × 5 mg = £1.55 per 5 mg
  • A week £1.55 × 7 = £10.88 · a month × 30 = £46.63 · a year × 365 = £567.37
  • Amount per serving: stated on the label.

Copper

  • Servings: 90 ÷ 1 per serving = 90
  • In the pack: 90 × 0.5 mg = 45 mg
  • £13.99 ÷ 45 mg × 1 mg = 31.1p per 1 mg copper
  • A week 31.1p × 7 = £2.18 · a month × 30 = £9.33 · a year × 365 = £113.47
  • Amount per serving: stated on the label.

Riboflavin (vitamin B2)

  • Servings: 90 ÷ 1 per serving = 90
  • In the pack: 90 × 5 mg = 450 mg
  • £13.99 ÷ 450 mg × 100 mg = £3.11 per 100 mg
  • A week £3.11 × 7 = £21.76 · a month × 30 = £93.27 · a year × 365 = £1134.74
  • Amount per serving: stated on the label.

Vitamin C

  • Servings: 90 ÷ 1 per serving = 90
  • In the pack: 90 × 113 mg = 10.2 g
  • £13.99 ÷ 10.2 g × 1 g = £1.38 per 1 g
  • A week £1.38 × 7 = £9.63 · a month × 30 = £41.27 · a year × 365 = £502.10
  • 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: iron bisglycinate

All 26, ranked →
ZipVitIron Bisglycinate 14mgCheapest per 14 mg ironZipVit · 14 mg a serving · 82p a month · a pack lasts 1 year3p£9.99View at ZipVit (opens in a new tab)
ZipVitIron Bisglycinate Energy ComplexZipVit · 14 mg a serving · £1.17 a month · a pack lasts 12 months4p£13.99View at ZipVit (opens in a new tab)
WeightWorldIron Bisglycinate TabletsWeightWorld · 28 mg a serving · £1.20 a month · a pack lasts 1.1 years4p£15.98View at WeightWorld (opens in a new tab)
This productHealf · 29 mg a serving · £2.25 a month · a pack lasts 6 months8pshown above

Ranked purely by price per 14 mg iron. 55 combination products also contain iron.

How it compares: betaine HCl

All 5, ranked →
Betaine HCl 648 mgCheapest per 650 mgHealf · 1.3 g a serving · £3.32 a month · a pack lasts 4 months11p£13.23View at Healf (opens in a new tab)
Betaine with PepsinLamberts Healthcare (Nature's Best) · 324 mg a serving · £4.66 a month · a pack lasts 3 months16p£13.95View at Lamberts Healthcare (opens in a new tab)
Higher NatureBetaine HCLHigher Nature · 300 mg a serving · £10.80 a month · a pack lasts 42 days36p£14.95View at Higher Nature (opens in a new tab)
This productHealf · 75 mg a serving · £40.42 a month · a pack lasts 10 days£1.35shown above

Ranked purely by price per 650 mg. 13 combination products also contain betaine HCl.

How it compares: biotin

All 20, ranked →
WeightWorldBiotin Vitamin B7 TabletsCheapest per 5 mgWeightWorld · 12 mg a serving · 34p a month · a pack lasts 2.4 years1p£9.99View at WeightWorld (opens in a new tab)
VitaBrightBiotin Hair Growth SupplementVitaBright · 12 mg a serving · 62p a month · a pack lasts 2.6 years2p£19.99View at VitaBright (opens in a new tab)
VitaBrightBiotin Tablets with CoconutVitaBright · 12 mg a serving · 62p a month · a pack lasts 2.6 years2p£19.99View at VitaBright (opens in a new tab)
This productHealf · 500 µg a serving · £46.63 a month · a pack lasts 9 days£1.55shown above

Ranked purely by price per 5 mg. 244 combination products also contain biotin.

How it compares: copper

All 10, ranked →
Chelated CopperCheapest per 1 mg copperHealf · 2.5 mg a serving · 79p a month · a pack lasts 8 months3p£6.57View at Healf (opens in a new tab)
Copper (citrate)Healf · 2 mg a serving · £2.61 a month · a pack lasts 4 months9p£10.42View at Healf (opens in a new tab)
Copper (Glycinate)Healf · 2 mg a serving · £2.75 a month · a pack lasts 4 months9p£10.98View at Healf (opens in a new tab)
This productHealf · 0.5 mg a serving · £9.33 a month · a pack lasts 45 days31pshown above

Ranked purely by price per 1 mg copper. 145 combination products also contain copper.

How it compares: riboflavin-5-phosphate

Compare every product in this form →
Riboflavin 5'-PhosphateCheapest per 100 mgHealf · 36.5 mg a serving · £31.92 a month · a pack lasts 22 days£1.06£23.30View at Healf (opens in a new tab)
This productHealf · 5 mg a serving · £93.27 a month · a pack lasts 5 days£3.11shown above

Ranked purely by price per 100 mg. 53 combination products also contain riboflavin (vitamin B2).

How it compares: vitamin C

All 113, ranked →
Vitamin C Plus TabletsCheapest per 1 gMyprotein · 1 g a serving · £1.00 a month · a pack lasts 6 months3p£5.99View at Myprotein (opens in a new tab)
Vitamin C Crystals PowderHealf · 1.1 g a serving · £1.01 a month · a pack lasts 7 months3p£7.61View at Healf (opens in a new tab)
Vitamin C PowderLamberts Healthcare (Nature's Best) · 1 g a serving · £1.50 a month · a pack lasts 8 months5p£12.50View at Lamberts Healthcare (opens in a new tab)
This productHealf · 113 mg a serving · £41.27 a month · a pack lasts 10 days£1.38shown above

Ranked purely by price per 1 g. 950 combination products also contain vitamin C.

On the label

Iron · Bisglycinate (gentle iron)
29 mg per serving (stated on the label)
Betaine HCl · Betaine HCl
75 mg per serving (stated on the label)
Pack
90 capsules · 90 servings · 1 capsule(s) a serving
Cost per serving
16p (90 servings in the pack)
More label details
Biotin · Biotin
500 µg per serving (stated on the label)
Copper · Copper
0.5 mg per serving (stated on the label)
Riboflavin (vitamin B2) · Riboflavin-5-phosphate
5 mg per serving (stated on the label)
Vitamin C · Standard (ascorbic acid and ascorbates)
113 mg per serving (stated on the label)
Sold by
Healf
What the listing says
“90 caps” · “Servings Per Container: 90” · “Serving Size: 1 Capsule” · “Betaine Hydrochloride ; 75 mg”
Ingredients

Vitamin C (as Ascorbic Acid), Betaine Hydrochloride, Iron (as Ferrous Bisglycinate Chelate) (Ferrochel®), Lipase (from Aspergillus niger), Riboflavin (as Riboflavin 5'-Phosphate Sodium), Copper (as Copper Bisglycinate Chelate)(Albion®), Vitamin A (as Beta-Carotene and Retinyl Palmitate), Vcaps® Plus Hypromellose Capsule, Antioxidant (Ascorbyl Palmitate), L-leucine, Anti-Caking Agent (Silicon Dioxide)

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 14 mg 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
£13.99Healf
First recorded
£13.991 Oct
Checked on
20 dayssince 1 Oct
Pack price at each check.
  1. First checked at Healf: £13.99

Questions about this product

How much does Seeking Health Optimal Iron With Cofactors cost per 650 mg?

£1.35 per 650 mg, from £13.99 for 90 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

10 days at one 650 mg dose. The pack holds 6.75 g in total.

How much does Seeking Health Optimal Iron With Cofactors cost per 5 mg?

£1.55 per 5 mg, from £13.99 for 90 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

9 days at one 5 mg dose. The pack holds 45 mg in total.

How much does Seeking Health Optimal Iron With Cofactors cost per 1 mg copper?

31p per 1 mg copper, from £13.99 for 90 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

45 days at one 1 mg dose. The pack holds 45 mg in total.

How much does Seeking Health Optimal Iron With Cofactors cost per 14 mg iron?

8p per 14 mg iron, from £13.99 for 90 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

6 months at one 14 mg dose. The pack holds 2.61 g in total.

How much does Seeking Health Optimal Iron With Cofactors cost per 100 mg?

£3.11 per 100 mg, from £13.99 for 90 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

5 days at one 100 mg dose. The pack holds 450 mg in total.

How much does Seeking Health Optimal Iron With Cofactors cost per 1 g?

£1.38 per 1 g, from £13.99 for 90 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

10 days at one 1 g dose. The pack holds 10.2 g in total.

About Seeking Health

All 49 Seeking Health products, priced per dose

More from Seeking Health

Keep comparing

All ironEvery form, cheapest per 14 mg iron firstBisglycinate (gentle iron)26 products rankedIron guideWhat it is, why people take it, how the forms differSeeking HealthAll 49 products from this brand, per doseMineralsEverything else we price in this categoryIron price historyEvery iron 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