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Biotin

Also called vitamin B7, vitamin H, D-biotin.

The best price per 5 mg and per month, form by form, across 10 UK retailers, and where to buy it cheapest. A unit for comparing, not advice.

Comparing biotin

Labels give biotin in micrograms, and some in milligrams: 5 mg is 5,000 mcg. We put every product in one unit before pricing it. Products that combine biotin with other ingredients are listed separately, because their price buys more than biotin. 5 mg is our unit for comparing prices, not a dose to take: the label’s directions and a pharmacist decide that.

Biotin

Prices last checked: . Ranked purely by price per 5 mg — a comparison unit, not a recommendation. We earn commission when you buy through these links; it never affects the order.

Compared at 5,000 µg. Enter the amount you take to see your own costs.

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Biotin, Biotin: products ranked by price per 5 mg
RankProductPer 5 mgPer monthLastsBuyHow it is worked out
1
WeightWorld Biotin Vitamin B7 Tablets
Cheapest per doseBiotin Vitamin B7 TabletsWeightWorld · 365 servings · 12 mg a servingDetails and price historyAdd to my stack
1p34p2.4 years£9.99View at WeightWorld (opens in a new tab)Free delivery over £35.00, otherwise £1.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 365 (as stated on the label)
  • In the pack: 365 × 12 mg = 4,380 mg
  • £9.99 ÷ 4,380 mg × 5 mg = 1.14p per 5 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • servings stated “Servings per Container: 365”
  • units per serving “Serving Size: 1 Tablets”
  • amount per serving “Vitamin B7 (as D-Biotin) ; 12000 mcg”

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2
VitaBright Biotin Hair Growth Supplement - 12,000mcg
Biotin Hair Growth Supplement - 12,000mcgVitaBright · 400 tablets · 400 servings · 12 mg a servingDetails and price historyAdd to my stackalso contains coconut oil powderclaimed: vegan
2p62p2.6 years£19.99View at VitaBright (opens in a new tab)Free delivery over £30.00, otherwise £2.95AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 400 ÷ 1 per serving = 400
  • In the pack: 400 × 12 mg = 4,800 mg
  • £19.99 ÷ 4,800 mg × 5 mg = 2.08p per 5 mg
  • Amount per serving: stated on the label.
  • Also contains: coconut oil powder. The price counts the biotin only.
What the retailer's listing says
  • pack units “400 Tablets”
  • servings stated “Servings Per Container: 400”
  • units per serving “Serving Size: 1 Tablet”
  • amount per serving “Biotin ; 12,000 mcg”

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3
VitaBright Biotin Tablets with Coconut
Biotin Tablets with CoconutVitaBright · 400 servings · 12 mg a servingDetails and price historyAdd to my stackalso contains coconut oil powderclaimed: vegan
2p62p2.6 years£19.99View at VitaBright (opens in a new tab)Free delivery over £30.00, otherwise £2.95AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 400 (as stated on the label)
  • In the pack: 400 × 12 mg = 4,800 mg
  • £19.99 ÷ 4,800 mg × 5 mg = 2.08p per 5 mg
  • Amount per serving: stated on the label.
  • Also contains: coconut oil powder. The price counts the biotin only.
What the retailer's listing says
  • servings stated “Servings Per Container: 400”
  • units per serving “Serving Size: 1 Tablet”
  • amount per serving “Biotin ; 12,000 mcg”

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4
Simply Supplements Biotin Tablets 10,000mcg
Biotin Tablets 10,000mcg120 tablets · 120 servings · 10 mg a servingDetails and price historyAdd to my stack
4p£1.258 months£9.99View at Simply Supplements (opens in a new tab)Free delivery from £20.00, otherwise £1.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 120 ÷ 1 per serving = 120
  • In the pack: 120 × 10 mg = 1,200 mg
  • £9.99 ÷ 1,200 mg × 5 mg = 4.16p per 5 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • amount per serving “Each Biotin 10,000mcg tablet”

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5
Naturesplus Biotin 10mg Sustained Release
Best value under 6 months' supplyBiotin 10mg Sustained ReleaseHealf · 90 tablets · 90 servings · 10 mg a servingDetails and price historyAdd to my stack
5p£1.506 months£8.99View at Healf (opens in a new tab)Free delivery over £50.00, otherwise £3.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 90 ÷ 1 per serving = 90
  • In the pack: 90 × 10 mg = 900 mg
  • £8.99 ÷ 900 mg × 5 mg = 4.99p per 5 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “90 tabs”
  • servings stated “Servings Per Container: 90”
  • units per serving “Serving Size: 1 Sustained-Release Tablet”
  • amount per serving “Biotin ; 10000 mcg”

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6
NOW Foods Biotin 5,000mcg - 120 vcaps
Biotin 5,000mcg - 120 vcapsHealf · 120 capsules · 120 servings · 5 mg a servingDetails and price historyAdd to my stack
8p£2.284 months£9.13View at Healf (opens in a new tab)Free delivery over £50.00, otherwise £3.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 120 ÷ 1 per serving = 120
  • In the pack: 120 × 5 mg = 600 mg
  • £9.13 ÷ 600 mg × 5 mg = 7.61p per 5 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “120 vcaps”
  • servings stated “Servings Per Container: 120”
  • units per serving “Serving Size: 1 Veg Capsule”
  • amount per serving “Biotin (5000 mcg) ; 5 mg”

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7
NOW Foods Biotin 5,000mcg - 60 vcaps
Biotin 5,000mcg - 60 vcapsHealf · 60 capsules · 60 servings · 5 mg a servingDetails and price historyAdd to my stack
10p£2.872 months£5.73View at Healf (opens in a new tab)Free delivery over £50.00, otherwise £3.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 60 ÷ 1 per serving = 60
  • In the pack: 60 × 5 mg = 300 mg
  • £5.73 ÷ 300 mg × 5 mg = 9.55p per 5 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “60 vcaps”
  • units per serving “Serving Size: 1 Veg Capsule”
  • amount per serving “Biotin (5000 mcg) ; 5 mg”

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8
Pure Encapsulations Biotin 8 mg
Biotin 8 mgHealf · 60 capsules · 60 servings · 8 mg a servingDetails and price historyAdd to my stackclaimed: vegetarian
10p£2.973 months£9.49View at Healf (opens in a new tab)Free delivery over £50.00, otherwise £3.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 60 ÷ 1 per serving = 60
  • In the pack: 60 × 8 mg = 480 mg
  • £9.49 ÷ 480 mg × 5 mg = 9.89p per 5 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “60 caps”
  • servings stated “Servings Per Container: 60”
  • units per serving “Serving Size: 1 capsule”
  • amount per serving “Biotin ; 8 mg”

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9
Myvitamins Biotin Gummies - Watermelon
Biotin Gummies - WatermelonMyprotein · 60 gummies · 30 servings · 10 mg a servingDetails and price historyAdd to my stackWatermelonclaimed: veganclaimed: vegetarian
12p£3.502 months£6.99View at Myprotein (opens in a new tab)Free delivery over £55.00, otherwise £4.49AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 60 ÷ 2 per serving = 30
  • In the pack: 30 × 10 mg = 300 mg
  • £6.99 ÷ 300 mg × 5 mg = 11.7p per 5 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “60gummies”
  • servings stated “Servings Per Container: 30”
  • units per serving “Per Daily Serving ; 2 Gummies”
  • amount per serving “Biotin ; 10,000 mcg (20,000%*)”

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10
Pure Encapsulations Biotin 8 mg
Biotin 8 mgW-Wellness · 60 capsules · 60 servings · 8 mg a servingDetails and price historyAdd to my stackclaimed: vegetarian
17p£5.003 months£16.00View at W-Wellness (opens in a new tab)Free delivery from £50.00, otherwise £3.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 60 ÷ 1 per serving = 60
  • In the pack: 60 × 8 mg = 480 mg
  • £16.00 ÷ 480 mg × 5 mg = 16.7p per 5 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “Contains: 60 capsules”
  • units per serving “a high-strength daily dose of biotin in a simple, vegetarian capsule”
  • amount per serving “Each capsule delivers 8mg of biotin”

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11
Webber Naturals and Holista Biotin 5000mcg
Biotin 5000mcgHealf · 60 capsules · 60 servings · 5 mg a servingDetails and price historyAdd to my stackclaimed: vegetarian
23p£7.002 months£13.99View at Healf (opens in a new tab)Free delivery over £50.00, otherwise £3.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 60 ÷ 1 per serving = 60
  • In the pack: 60 × 5 mg = 300 mg
  • £13.99 ÷ 300 mg × 5 mg = 23.3p per 5 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “60 veggie caps”
  • servings stated “Servings Per Container: 60”
  • units per serving “Serving Size: 1 Tablet”
  • amount per serving “Biotin ; 5000 mcg”

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12
Thorne Biotin
BiotinHealf · 60 capsules · 60 servings · 8 mg a servingDetails and price historyAdd to my stack
24p£7.063 months£22.59View at Healf (opens in a new tab)Free delivery over £50.00, otherwise £3.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 60 ÷ 1 per serving = 60
  • In the pack: 60 × 8 mg = 480 mg
  • £22.59 ÷ 480 mg × 5 mg = 23.5p per 5 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “60 caps”
  • servings stated “Servings Per Container: 60”
  • units per serving “Serving Size: 1 Capsule”
  • amount per serving “Biotin ; 8000 mcg”

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13
SOLGAR Biotin 5000ug
Biotin 5000ugHealf · 100 capsules · 100 servings · 5 mg a servingDetails and price historyAdd to my stackclaimed: veganclaimed: gluten-free
29p£8.583 months£28.60View at Healf (opens in a new tab)Free delivery over £50.00, otherwise £3.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 100 ÷ 1 per serving = 100
  • In the pack: 100 × 5 mg = 500 mg
  • £28.60 ÷ 500 mg × 5 mg = 28.6p per 5 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “100 capsules”
  • units per serving “take one (1) vegetable capsule daily”
  • amount per serving “D-biotin ; 5000 mcg”

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14
SOLGAR Biotin 5000ug
Biotin 5000ugHealf · 50 capsules · 50 servings · 5 mg a servingDetails and price historyAdd to my stackclaimed: veganclaimed: gluten-free
31p£9.2950 days£15.49View at Healf (opens in a new tab)Free delivery over £50.00, otherwise £3.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 50 ÷ 1 per serving = 50
  • In the pack: 50 × 5 mg = 250 mg
  • £15.49 ÷ 250 mg × 5 mg = 31p per 5 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “50 capsules”
  • units per serving “take one (1) vegetable capsule daily”
  • amount per serving “D-biotin ; 5000 mcg”

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15
Healthspan Biotin
Biotin180 tablets · 180 servings · 1 mg a servingDetails and price historyAdd to my stack
39p£11.6636 days£13.99View at Healthspan (opens in a new tab)Free delivery over £30.00, otherwise £2.45AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 180 ÷ 1 per serving = 180
  • In the pack: 180 × 1 mg = 180 mg
  • £13.99 ÷ 180 mg × 5 mg = 38.9p per 5 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “180 tablets”
  • units per serving “Swallow one tablet”
  • amount per serving “Biotin 1000 µg”

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16
SOLGAR Biotin 5000ug
Biotin 5000ugW-Wellness · 50 capsules · 50 servings · 5 mg a servingDetails and price historyAdd to my stack
49p£14.7250 days£24.53View at W-Wellness (opens in a new tab)Free delivery from £50.00, otherwise £3.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 50 ÷ 1 per serving = 50
  • In the pack: 50 × 5 mg = 250 mg
  • £24.53 ÷ 250 mg × 5 mg = 49.1p per 5 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “Contains: 50 Capsules”
  • amount per serving “a daily dose of Solgar Biotin 5000mcg”

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17
Webber Naturals and Holista Collagen30® with Biotin Bioactive Collagen Peptides
Collagen30® with Biotin Bioactive Collagen PeptidesHealf · 120 tablets · 40 servings · 5 mg a servingDetails and price historyAdd to my stackalso contains collagenclaimed: gluten-freeclaimed: sugar-free
75p£22.4940 days£29.99View at Healf (opens in a new tab)Free delivery over £50.00, otherwise £3.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 120 ÷ 3 per serving = 40
  • In the pack: 40 × 5 mg = 200 mg
  • £29.99 ÷ 200 mg × 5 mg = 75p per 5 mg
  • Amount per serving: stated on the label.
  • Also contains: collagen. The price counts the biotin only.
What the retailer's listing says
  • pack units “120 tabs”
  • servings stated “Servings Per Container: 40”
  • units per serving “Serving Size: 3 Tablets”
  • amount per serving “Biotin ; 5000 mcg ; 10000%”

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18
Nature's Best Biotin 500µg - Vitamin B7 for Hair, Skin and Nail Health
Biotin 500µg - Vitamin B7 for Hair, Skin and Nail Health100 capsules · 100 servings · 500 µg a servingDetails and price historyAdd to my stackclaimed: veganclaimed: vegetarian
75p£22.5010 days£7.50View at Lamberts Healthcare (Nature's Best) (opens in a new tab)Free delivery over £20.00, otherwise £2.50AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 100 ÷ 1 per serving = 100
  • In the pack: 100 × 500 µg = 50 mg
  • £7.50 ÷ 50 mg × 5 mg = 75p per 5 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “Specifications: 100 Capsules”
  • amount per serving “provide a full 500µg of biotin”

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19
Nature's Truth Biotin 5000ug Natural Strawberry Flavour  60 Tablets
Biotin 5000ug Natural Strawberry Flavour 60 TabletsNature's Truth · Lloyds Pharmacy · 60 gummies · 60 servings · 5 mg a servingDetails and price historyAdd to my stackNatural StrawberryOut of stock
18p£5.502 months£10.99View at Lloyds Pharmacy (opens in a new tab)Free delivery over £30.00, otherwise £2.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 60 ÷ 1 per serving = 60
  • In the pack: 60 × 5 mg = 300 mg
  • £10.99 ÷ 300 mg × 5 mg = 18.3p per 5 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “60 Tablets”
  • units per serving “take one (1) gummy daily”
  • amount per serving “Biotin 5000ug”

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20
Boots Hair Formula Biotin 1000 µg 90 Tablets
Hair Formula Biotin 1000 µg 90 Tablets90 tablets · 90 servings · 1 mg a servingDetails and price historyAdd to my stackOut of stock
67p£20.0018 days£12.00View at Boots (opens in a new tab)Free delivery over £25.00, otherwise £3.95AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 90 ÷ 1 per serving = 90
  • In the pack: 90 × 1 mg = 90 mg
  • £12.00 ÷ 90 mg × 5 mg = 66.7p per 5 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “90 Tablets”
  • units per serving “Take 1 tablet a day”
  • amount per serving “Biotin 1000 µg”

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By shop

Each shop's biotin products, with where its cheapest sits in the market.

How we work out these prices

We count the amount of biotin stated on the label, converting between units (for example micrograms and IU) so every product is on the same scale.

Questions

Where can I buy biotin cheapest in the UK?

On 20 October 2026, the cheapest biotin per dose from a UK seller was Biotin Vitamin B7 Tablets at WeightWorld (1p per 5 mg, 34p a month). Then Biotin Hair Growth Supplement - 12,000mcg at VitaBright (2p per 5 mg, 62p a month) and Biotin Tablets with Coconut at VitaBright (2p per 5 mg, 62p a month). That is by price per 5 mg, across 10 UK retailers and 20 products, with every price checked daily; the table above shows the working for each.

What is the best price per 5 mg of biotin today?

1p per 5 mg, for Biotin Vitamin B7 Tablets at WeightWorld (1p per 5 mg, 34p a month), on 20 October 2026. The dearest of the 20 products we price is 75p per 5 mg, and the middle one is 17p.

How much does biotin cost per month?

At one 5 mg dose a day, the cheapest works out at 34p a month, for Biotin Vitamin B7 Tablets at WeightWorld, on 20 October 2026. Across the 20 products we price it runs from 34p to £22.50 a month. A month is 30 days, and the figure follows the dose you enter in the table.

Do bigger biotin packs cost less per dose?

Mostly, yes: on 20 October 2026, the 4 packs that last more than six months average 2p per 5 mg, against 31p for the 16 that last six months or less. The table marks the cheapest pack that lasts six months or less as the best value for anyone who would rather not buy a year at once.

How long does a pack of biotin last?

At one 5 mg dose a day, the packs we price last from 10 days to 2.6 years; the middle one lasts 3 months. Each row says how long its pack lasts at the dose you enter.

What does “per 5 mg” mean?

It is the unit we use to put every product on the same scale: the price of 5 mg of biotin, whatever the pack size or serving size. It is a comparison unit, not a recommendation of how much to take. Use the “Your daily dose” box to see costs at the amount you actually take.

Why is a product I have seen in the shops missing?

If a retailer’s listing does not let us confirm the amount per serving, the pack size or the form, we do not guess and we do not show the product. It appears once its label has been read and confirmed.

How up to date are the prices?

Prices on this page were last checked on 20 October 2026. Every table shows the date its prices were checked. Always confirm the price on the retailer’s site before buying.

Do retailers pay to appear higher?

No. We earn a commission when you buy through our links, but the order is set only by price per dose. No retailer or brand can pay for position.