Biotin Vitamin B7 Tablets
£9.99 for 365 servings at WeightWorld. That works out at 1p per 5 mg, which ranks it 1st of the 20 biotin products we price across 10 UK retailers.
At one 5 mg dose a day, this pack lasts 2.4 years. A month is 30 days, so twelve of them is not quite a year.
How we worked it out
- In the pack: 365 × 12 mg = 4,380 mg
- £9.99 ÷ 4,380 mg × 5 mg = 1.14p per 5 mg
- A week 1.14p × 7 = 8p · a month × 30 = 34p · a year × 365 = £4.16
- 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: biotin
All 20, ranked →
Ranked purely by price per 5 mg. 244 combination products also contain biotin.
On the label
- Biotin · Biotin
- 12 mg per serving (stated on the label)
- Pack
- 365 servings · 1 tablet(s) a serving
- Cost per serving
- 3p (365 servings in the pack)
More label details
- Sold by
- WeightWorld
- What the listing says
- “Servings per Container: 365” · “Serving Size: 1 Tablets” · “Vitamin B7 (as D-Biotin) ; 12000 mcg”
Ingredients
Bulking Agent: Microcrystalline Cellulose, Anti-Caking Agent: Dicalcium Phosphate Advice Do not exceed the recommended daily dose. Food supplements must not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Discontinue use if any adverse reactions occur. Not intended for use by persons under the age of 18.
From the WeightWorld listing. Check the pack itself if you have an allergy: labels mark allergens in bold.
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One 5 mg dose is our comparison unit, not a recommendation.
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Filled in from the label’s serving: 1 tablet.
What you paid
Optional. At WeightWorld today: £9.99.
“Order by” allows 3 working days’ delivery from WeightWorld and your spare days.
Price history
No price change since 9 October 2026. Checked on 1 day, most recently 9 October 2026.
- Price at every check
- £9.99WeightWorld
- First recorded
- £9.999 Oct
- Checked on
- 1 daysince 9 Oct
Checked once so far, on 9 October 2026.
- First checked at WeightWorld: £9.99
Questions about this product
How much does WeightWorld Biotin Vitamin B7 Tablets cost per 5 mg?
1p per 5 mg, from £9.99 for 365 servings at WeightWorld, checked on 9 October 2026.
Is it the cheapest biotin in the UK?
Yes. Of the 20 we price across 10 UK retailers, this is the cheapest per 5 mg.
How long does one pack last?
2.4 years at one 5 mg dose. The pack holds 4,380 mg in total.
About WeightWorld
All 124 WeightWorld products, priced per dose
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