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 › Vitamins › Thiamine (vitamin B1)

Life ExtensionVitamins

BioActive Complete B-Complex, 60 capsules

£7.84 for 60 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 100 mg26pOne 100 mg dose is our comparison unit for thiamine (vitamin B1). It is not a recommendation.
A day26p
A week£1.83
A month£7.84
A year£95.39

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

How we worked it out

Thiamine (vitamin B1)

  • Servings: 60 ÷ 2 per serving = 30
  • In the pack: 30 × 100 mg = 3 g
  • £7.84 ÷ 3 g × 100 mg = 26.1p per 100 mg
  • A week 26.1p × 7 = £1.83 · a month × 30 = £7.84 · a year × 365 = £95.39
  • Amount per serving: stated on the label.

Biotin

  • Servings: 60 ÷ 2 per serving = 30
  • In the pack: 30 × 1 mg = 30 mg
  • £7.84 ÷ 30 mg × 5 mg = £1.31 per 5 mg
  • A week £1.31 × 7 = £9.15 · a month × 30 = £39.20 · a year × 365 = £476.93
  • Amount per serving: stated on the label.

Folate

  • Servings: 60 ÷ 2 per serving = 30
  • In the pack: 30 × 400 µg = 12 mg
  • £7.84 ÷ 12 mg × 400 µg = 26.1p per 400 µg
  • A week 26.1p × 7 = £1.83 · a month × 30 = £7.84 · a year × 365 = £95.39
  • Amount per serving: stated on the label.

Pantothenic acid (B5)

  • Servings: 60 ÷ 2 per serving = 30
  • In the pack: 30 × 500 mg = 15 g
  • £7.84 ÷ 15 g × 500 mg = 26.1p per 500 mg
  • A week 26.1p × 7 = £1.83 · a month × 30 = £7.84 · a year × 365 = £95.39
  • Amount per serving: stated on the label.

Vitamin B12

  • Servings: 60 ÷ 2 per serving = 30
  • In the pack: 30 × 300 µg = 9 mg
  • £7.84 ÷ 9 mg × 1 mg = 87.1p per 1 mg
  • A week 87.1p × 7 = £6.10 · a month × 30 = £26.13 · a year × 365 = £317.96
  • 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: thiamine (vitamin B1)

Compare every product in this form →
Vitamin B1 (Thiamin) 100mgCheapest per 100 mgLamberts Healthcare (Nature's Best) · 100 mg a serving · £2.50 a month · a pack lasts 3 months8p£7.50View at Lamberts Healthcare (opens in a new tab)
Natures AidVitamin B1 100mg 90 TabletsLloyds Pharmacy · 100 mg a serving · £3.83 a month · a pack lasts 3 months13p£11.49View at Lloyds Pharmacy (opens in a new tab)
This productHealf · 100 mg a serving · £7.84 a month · a pack lasts 30 days26pshown above

Ranked purely by price per 100 mg. 208 combination products also contain thiamine (vitamin B1).

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 · 1 mg a serving · £39.20 a month · a pack lasts 6 days£1.31shown above

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

How it compares: methylfolate

All 22, ranked →
Methyl Folate 1,000 mcgCheapest per 400 µgHealf · 1 mg a serving · £1.27 a month · a pack lasts 7 months4p£9.49View at Healf (opens in a new tab)
5-MTHF 5 mgHealf · 5 mg a serving · £2.22 a month · a pack lasts 2.1 years7p£55.58View at Healf (opens in a new tab)
Vimergy5-MTHFHealf · 5 mg a serving · £2.36 a month · a pack lasts 2.1 years8p£58.99View at Healf (opens in a new tab)
This productHealf · 400 µg a serving · £7.84 a month · a pack lasts 30 days26pshown above

Ranked purely by price per 400 µg. 155 combination products also contain folate.

How it compares: pantothenic acid (B5)

Compare every product in this form →
Pantothenic AcidCheapest per 500 mgHealf · 500 mg a serving · £4.71 a month · a pack lasts 3 months16p£15.69View at Healf (opens in a new tab)
Vitamin B5 500mg Pantothenic AcidLamberts Healthcare (Nature's Best) · 500 mg a serving · £5.25 a month · a pack lasts 2 months18p£10.50View at Lamberts Healthcare (opens in a new tab)
HealthAidCalcium Pantothenate (Vitamin B5) 750mg Prolonged ReleaseVitamin Planet · 750 mg a serving · £11.53 a month · a pack lasts 45 days38p£17.30View at Vitamin Planet (opens in a new tab)
This productHealf · 500 mg a serving · £7.84 a month · a pack lasts 30 days26pshown above

Ranked purely by price per 500 mg. 189 combination products also contain pantothenic acid (B5).

How it compares: vitamin B12 methylcobalamin

All 27, ranked →
WeightWorldVitamin B12 Methylcobalamin TabletsCheapest per 1 mgWeightWorld · 1 mg a serving · 60p a month · a pack lasts 1.2 years2p£8.99View at WeightWorld (opens in a new tab)
Vitamin B12 Tablets 1000mcgBulk · 1 mg a serving · 83p a month · a pack lasts 6 months3p£4.99View at Bulk (opens in a new tab)
Vitamin B12 Tablets 1000mcgBulk · 1 mg a serving · £1.25 a month · a pack lasts 2 months4p£2.49View at Bulk (opens in a new tab)
This productHealf · 300 µg a serving · £26.13 a month · a pack lasts 9 days87pshown above

Ranked purely by price per 1 mg. 218 combination products also contain vitamin B12.

On the label

Thiamine (vitamin B1) · Thiamine
100 mg per serving (stated on the label)
Biotin · Biotin
1 mg per serving (stated on the label)
Pack
60 capsules · 30 servings · 2 capsule(s) a serving
Cost per serving
26p (30 servings in the pack)
More label details
Folate · Methylfolate (5-MTHF)
400 µg per serving (stated on the label)
Pantothenic acid (B5) · Pantothenic acid (B5)
500 mg per serving (stated on the label)
Vitamin B12 · Methylcobalamin
300 µg per serving (stated on the label)
Claimed on the listing
vegetarian
Sold by
Healf
What the listing says
“60 caps” · “Servings Per Container: 30” · “Serving Size: 2 Vegetarian Capsules” · “Biotin ; 1000 mcg”
Ingredients

Pantothenic Acid (as D-Calcium Pantothenate), Thiamine (Vitamin B1) (as Thiamine HCl), Niacin (as Niacinamide And Niacin), Vitamin B6 (as Pyridoxine HCl And Pyridoxal 5'-Phosphate), Inositol, Riboflavin (Vitamin B2) (as Riboflavin And Riboflavin 5'-Phosphate), Calcium (as D-Calcium Pantothenate, Dicalcium Phosphate), PABA (Para-Aminobenzoic Acid), Folate (as L-5-Methyltetrahydrofolate Calcium Salt), Vitamin B12 (as Methylcobalamin), Vegetable Cellulose (Capsule), Bulking Agent (Microcrystalline Cellulose), Anti-Caking Agent (Stearic Acid), Purified Water, 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 100 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
£7.84Healf
First recorded
£7.841 Oct
Checked on
20 dayssince 1 Oct
Pack price at each check.
  1. First checked at Healf: £7.84

Questions about this product

How much does Life Extension BioActive Complete B-Complex cost per 5 mg?

£1.31 per 5 mg, from £7.84 for 60 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

6 days at one 5 mg dose. The pack holds 30 mg in total.

How much does Life Extension BioActive Complete B-Complex cost per 400 µg?

26p per 400 µg, from £7.84 for 60 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

30 days at one 400 µg dose. The pack holds 12 mg in total.

How much does Life Extension BioActive Complete B-Complex cost per 500 mg?

26p per 500 mg, from £7.84 for 60 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

30 days at one 500 mg dose. The pack holds 15 g in total.

How much does Life Extension BioActive Complete B-Complex cost per 100 mg?

26p per 100 mg, from £7.84 for 60 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

30 days at one 100 mg dose. The pack holds 3 g in total.

How much does Life Extension BioActive Complete B-Complex cost per 1 mg?

87p per 1 mg, from £7.84 for 60 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

9 days at one 1 mg dose. The pack holds 9 mg in total.

About Life Extension

All 19 Life Extension products, priced per dose

More from Life Extension

Keep comparing

All thiamine (vitamin B1)Every form, cheapest per 100 mg firstThiamine (vitamin B1) guideWhat it is, why people take it, how the forms differLife ExtensionAll 19 products from this brand, per doseVitaminsEverything else we price in this categoryThiamine (vitamin B1) price historyEvery thiamine (vitamin B1) 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