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Boron

Also called boron citrate, boron glycinate, calcium fructoborate, fruitex-b.

The best price per 3 mg boron and per month, form by form, across 4 UK retailers, and where to buy it cheapest. A unit for comparing, not advice.

Comparing boron

We count the boron a label states per serving, whatever the pack size or the serving size, so every product sits on one scale. Products that combine boron with other ingredients are listed separately, because their price buys more than boron. 3 mg is our unit for comparing prices, not a dose to take: the label’s directions and a pharmacist decide that.

Boron

Prices last checked: . Ranked purely by price per 3 mg boron — a comparison unit, not a recommendation. We earn commission when you buy through these links; it never affects the order.

Compared at 3 mg. Enter the amount you take to see your own costs.

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Boron, Boron: products ranked by price per 3 mg boron
RankProductPer 3 mg boronPer monthLastsBuyHow it is worked out
1
Nutravita Boron 4mg
Cheapest per doseBoron 4mgNutravita · 400 tablets · 400 servings · 4 mg a servingDetails and price historyAdd to my stackclaimed: vegan
2p56p1.5 years£9.99View at Nutravita (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: 400 ÷ 1 per serving = 400
  • In the pack: 400 × 4 mg = 1.6 g
  • £9.99 ÷ 1.6 g × 3 mg = 1.87p per 3 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “400 Vegan Tablets”
  • units per serving “We recommend taking one tablet daily”
  • amount per serving “provides 4mg of boron per easy-to-swallow tablet”

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2
NOW Foods Boron 3mg - 250 vcaps
Boron 3mg - 250 vcapsHealf · 250 capsules · 250 servings · 3 mg a servingDetails and price historyAdd to my stack
5p£1.448 months£11.98View 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: 250 ÷ 1 per serving = 250
  • In the pack: 250 × 3 mg = 750 mg
  • £11.98 ÷ 750 mg × 3 mg = 4.79p per 3 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “250 vcaps”
  • units per serving “Serving Size: 1 Veg Capsule”
  • amount per serving “(Albion) ; 3 mg”
  • compound mass “Boron (from 30 mg Bororganic Glycine)”

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3
NOW Foods Boron 3mg - 100 vcaps
Best value under 6 months' supplyBoron 3mg - 100 vcapsHealf · 100 capsules · 100 servings · 3 mg a servingDetails and price historyAdd to my stack
5p£1.533 months£5.11View 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 × 3 mg = 300 mg
  • £5.11 ÷ 300 mg × 3 mg = 5.11p per 3 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “100 vcaps”
  • servings stated “Servings Per Container: 100”
  • units per serving “Serving Size: 1 Veg Capsule”
  • amount per serving “(Albion) ; 3 mg”
  • compound mass “Boron (from 30 mg Bororganic Glycine)”

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4
SOLGAR Boron 3mg
Boron 3mgHealf · 100 capsules · 100 servings · 3 mg a servingDetails and price historyAdd to my stackclaimed: veganclaimed: gluten-free
7p£2.133 months£7.09View 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 × 3 mg = 300 mg
  • £7.09 ÷ 300 mg × 3 mg = 7.09p per 3 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “100 capsules”
  • units per serving “one (1) vegetable capsule daily”
  • amount per serving “Boron (as boric acid) 3 mg”

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5
SOLGAR Boron 3mg
Boron 3mgSolgar · 100 capsules · 100 servings · 3 mg a servingDetails and price historyAdd to my stackclaimed: veganclaimed: vegetarian
11p£3.153 months£10.50View at Solgar (opens in a new tab)Free delivery over £40.00, 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 × 3 mg = 300 mg
  • £10.50 ÷ 300 mg × 3 mg = 10.5p per 3 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “Pack of 100”
  • units per serving “By taking 1 capsule of Boron”
  • amount per serving “Provides 3 mg per capsule”

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6
KIKI Health Ionic Boron Liquid Concentrate
Ionic Boron Liquid ConcentrateHealf · 50 ml · 25 servings · 10 mg a servingDetails and price historyAdd to my stack
23p£7.023 months£19.50View 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 ÷ 2 per serving = 25
  • In the pack: 25 × 10 mg = 250 mg
  • £19.50 ÷ 250 mg × 3 mg = 23.4p per 3 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “50ml”
  • servings stated “Servings in bottle: 25”
  • units per serving “Serving size: 30 drops (2ml)”
  • amount per serving “Boron ; 10mg”

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7
KIKI Health Ionic Boron Liquid Concentrate
Ionic Boron Liquid ConcentrateMyprotein · 50 ml · 25 servings · 10 mg a servingDetails and price historyAdd to my stack
24p£7.203 months£20.00View 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: 50 ÷ 2 per serving = 25
  • In the pack: 25 × 10 mg = 250 mg
  • £20.00 ÷ 250 mg × 3 mg = 24p per 3 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “50ml”
  • servings stated “Servings per bottle: 25”
  • units per serving “30 drops (2ml)”
  • amount per serving “Boron ; 10mg ; N/A”

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8
Vibrant Health Boron
BoronHealf · 60 capsules · 30 servings · 6 mg a servingDetails and price historyAdd to my stackalso contains broccoli powder 676 mg
26p£7.872 months£15.75View 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 ÷ 2 per serving = 30
  • In the pack: 30 × 6 mg = 180 mg
  • £15.75 ÷ 180 mg × 3 mg = 26.2p per 3 mg
  • Amount per serving: stated on the label.
  • Also contains: broccoli powder 676 mg. The price counts the boron only.
What the retailer's listing says
  • pack units “60 caps”
  • servings stated “Servings Per Container: 30”
  • units per serving “Serving Size: 2 Capsules”
  • amount per serving “Calcium Fructoborate providing 6mg Boron”
  • compound mass “providing 6mg Boron ; 240 mg”

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By shop

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

How we work out these prices

We count the elemental boron a product provides, not the weight of the whole compound it comes in. If a label states the boron amount, we use it. If it only gives the compound's weight, we estimate using a published conversion factor and mark the figure “estimated”. If we cannot tell which the number means, the product is left out until it can be confirmed.

Questions

Where can I buy boron cheapest in the UK?

On 20 October 2026, the cheapest boron per dose from a UK seller was Boron 4mg at Nutravita (2p per 3 mg boron, 56p a month). Then Boron 3mg - 250 vcaps at Healf (5p per 3 mg boron, £1.44 a month) and Boron 3mg - 100 vcaps at Healf (5p per 3 mg boron, £1.53 a month). That is by price per 3 mg boron, across 4 UK retailers and 8 products, with every price checked daily; the table above shows the working for each.

What is the best price per 3 mg boron of boron today?

2p per 3 mg boron, for Boron 4mg at Nutravita (2p per 3 mg boron, 56p a month), on 20 October 2026. The dearest of the 8 products we price is 26p per 3 mg boron, and the middle one is 9p.

How much does boron cost per month?

At one 3 mg dose a day, the cheapest works out at 56p a month, for Boron 4mg at Nutravita, on 20 October 2026. Across the 8 products we price it runs from 56p to £7.87 a month. A month is 30 days, and the figure follows the dose you enter in the table.

Do bigger boron packs cost less per dose?

Mostly, yes: on 20 October 2026, the 2 packs that last more than six months average 3p per 3 mg boron, against 16p for the 6 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 boron last?

At one 3 mg dose a day, the packs we price last from 2 months to 1.5 years; the middle one lasts 3 months. Each row says how long its pack lasts at the dose you enter.

What does “per 3 mg boron” mean?

It is the unit we use to put every product on the same scale: the price of 3 mg of elemental boron, 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.