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Home › Minerals › Zinc

Zinc Oxide

Also called zn, zinc picolinate, zinc citrate and 5 more

zinc gluconate, zinc bisglycinate, zinc oxide, zinc sulphate, zinc sulfate.

Cheapest zinc oxide: 4p per 15 mg zinc at Boots, of 3 products at 1 shop. Price checked 15 October 2026.

The best price per 15 mg zinc and per month across 1 UK retailer, and where to buy it cheapest. A unit for comparing, not advice.

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Comparing zinc

We count the zinc a label states per serving, whatever the pack size or the serving size, so every product sits on one scale. Zinc comes as picolinate, citrate, gluconate, bisglycinate, oxide, sulphate and other forms, and each form has its own table, because someone buying one would not usually take another as a like-for-like substitute. A product with one other ingredient is ranked here with an “also contains” note; products that combine zinc with several others are listed separately, because their price buys more than zinc. 15 mg is our unit for comparing prices, not a dose to take: the label’s directions and a pharmacist decide that.

Newest prices checked: ; an older price shows its own date. Ranked purely by price per 15 mg zinc — a comparison unit, not a recommendation. We earn commission when you buy through these links; it never affects the order.

3 of the 3 cheapest links on this page earn us nothing; the order is price alone. Shop by shop

Compared at 15 mg. Enter the amount you take to see your own costs.

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Zinc Oxide: products ranked by price per 15 mg zinc
RankProductPer 15 mg zincPer monthLastsBuyHow it is worked out
1
Cheapest per doseVitamin C and Zinc 180 Tablets (6 month supply)180 tablets · 180 servings · 15 mg a servingDetails and price historyAdd to my stackalso contains vitamin c
4p£1.256 months£7.50View at Boots (opens in a new tab)Price checked 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: 180 ÷ 1 per serving = 180
  • In the pack: 180 × 15 mg = 2.7 g
  • £7.50 ÷ 2.7 g × 15 mg = 4.17p per 15 mg
  • Amount per serving: stated on the label.
  • Also contains: vitamin c. The price counts the zinc only.
What the retailer's listing says
  • pack units “180 Tablets”
  • units per serving “Take 1 tablet a day”
  • amount per serving “Zinc ; 15 mg ; 150”

Is this wrong? Tell us

2
Vitamin C & Zinc 90 Tablets (3 months supply)90 tablets · 90 servings · 15 mg a servingDetails and price historyAdd to my stackalso contains vitamin c
6p£1.673 months£5.00View at Boots (opens in a new tab)Price checked 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 × 15 mg = 1.35 g
  • £5.00 ÷ 1.35 g × 15 mg = 5.56p per 15 mg
  • Amount per serving: stated on the label.
  • Also contains: vitamin c. The price counts the zinc only.
What the retailer's listing says
  • pack units “90 Tablets”
  • units per serving “Take 1 tablet a day”
  • amount per serving “Zinc ; 15 mg ; 150%”

Is this wrong? Tell us

3
Vitamin C and Zinc 60 Tablets60 tablets · 60 servings · 15 mg a servingDetails and price historyAdd to my stackalso contains vitamin c
6p£1.752 months£3.50View at Boots (opens in a new tab)Price checked 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: 60 ÷ 1 per serving = 60
  • In the pack: 60 × 15 mg = 900 mg
  • £3.50 ÷ 900 mg × 15 mg = 5.83p per 15 mg
  • Amount per serving: stated on the label.
  • Also contains: vitamin c. The price counts the zinc only.
What the retailer's listing says
  • pack units “60 Tablets”
  • units per serving “Take 1 tablet a day”
  • amount per serving “Zinc ; 15 mg ; 150”

Is this wrong? Tell us

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By shop

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

How we work out these prices

We count the elemental zinc a product provides, not the weight of the whole compound it comes in. If a label states the zinc 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.

Conversion factor used when only the compound weight is given: oxide 80.3%. How we chose these.

Our full method · All zinc forms