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BestCapsules

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Say what you want help with. The finder shows what the GB register lets any seller claim for it, what the register assessed and refused, and the cheapest capsules per capsule for each ingredient. It quotes; it never advises.

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Where the register allows less than sellers suggest

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Name it and the finder says whether the register authorises any claim for it for your goals, or refused one, or has never assessed it.

  • None yet. Type an ingredient in the box above, for example “magnesium” or “turmeric”.

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Seller-stated only: vegan means the seller says vegan.

Teeth and gums and Immunity and Focus

1509 capsules across 58 ingredients

Teeth and gums. The register authorises wording about the maintenance of normal teeth for several minerals and vitamins, quoted exactly on their pages. Brushing, fluoride and regular check-ups do the real work; the Oral Health Foundation is the specialist charity.

Immunity. This page gathers ingredients whose GB register claims relate to the normal function of the immune system, with the exact authorised wording quoted on each ingredient page. Anything not authorised may not be claimed by sellers, and we quote that status too. A balanced diet, sleep and vaccination advice from the NHS come before any capsule.

Focus. Some nutrients hold register claims relating to normal cognitive or psychological function, quoted exactly on their pages. The wording is precise and worth reading as written; anything beyond it is marketing, not authorised claim.

Nothing here is medical advice. The wording is the GB register's, quoted exactly; whether a product qualifies to use it is the seller's responsibility. Speak to a GP or pharmacist before taking a supplement, especially if you are pregnant, take medicines or have a diagnosed condition. Wording from the GB nutrition and health claims register; mapping reviewed 4 September 2026.

Holds an authorised claim

Magnesium

1 authorised claim · 27 capsules · ingredient page
  • “Magnesium contributes to the maintenance of normal teeth” · Teeth and gums

Not authorised for immunity: the register refused 1 claim there.

All 27 magnesium capsules

Vitamin C

4 authorised claims · 17 capsules · ingredient page
  • “Vitamin C contributes to maintain the normal function of the immune system during and after intense physical exercise” · Immunity
  • “Vitamin C contributes to the normal function of the immune system” · Immunity
  • “Vitamin C contributes to normal collagen formation for the normal function of gums” · Teeth and gums
  • “Vitamin C contributes to normal collagen formation for the normal function of teeth” · Teeth and gums

All 17 vitamin c capsules

Vitamin D

3 authorised claims · 13 capsules · ingredient page
  • “Vitamin D contributes to the normal function of the immune system” · Immunity
  • “Vitamin D contributes to the normal function of the immune system in children.” · Immunity
  • “Vitamin D contributes to the maintenance of normal teeth” · Teeth and gums

All 13 vitamin d capsules

Zinc

2 authorised claims · 12 capsules · ingredient page
  • “Zinc contributes to the normal function of the immune system” · Immunity
  • “Zinc contributes to normal cognitive function” · Focus

Not authorised for teeth and gums: the register refused 1 claim there.

All 12 zinc capsules

Vitamin B6

1 authorised claim · 10 capsules · ingredient page
  • “Vitamin B6 contributes to the normal function of the immune system” · Immunity

Not authorised for teeth and gums: the register refused 1 claim there.

All 10 vitamin b6 capsules

Calcium

1 authorised claim · 5 capsules · ingredient page
  • “Calcium is needed for the maintenance of normal teeth” · Teeth and gums

Not authorised for focus: the register refused 1 claim there.

All 5 calcium capsules

Copper

1 authorised claim · 4 capsules · ingredient page
  • “Copper contributes to the normal function of the immune system” · Immunity

All 4 copper capsules

Iron

3 authorised claims · 4 capsules · ingredient page
  • “Iron contributes to the normal function of the immune system” · Immunity
  • “Iron contributes to normal cognitive function” · Focus
  • “Iron contributes to normal cognitive development of children” · Focus

All 4 iron capsules

Folate

1 authorised claim · 3 capsules · ingredient page
  • “Folate contributes to the normal function of the immune system” · Immunity

Selenium

1 authorised claim · 3 capsules · ingredient page
  • “Selenium contributes to the normal function of the immune system” · Immunity

Not authorised for focus: the register refused 1 claim there.

Pantothenic Acid

1 authorised claim · 1 capsule · ingredient page
  • “Pantothenic acid contributes to normal mental performance” · Focus

Vitamin A

1 authorised claim · 1 capsule · ingredient page
  • “Vitamin A contributes to the normal function of the immune system” · Immunity

Not authorised for teeth and gums: the register refused 2 claims there.

Vitamin B12

1 authorised claim · 1 capsule · ingredient page
  • “Vitamin B12 contributes to the normal function of the immune system” · Immunity

Not authorised for teeth and gums: the register refused 1 claim there.

Assessed by the register and not authorised

The register looked at claims for these relating to teeth and gums and immunity and focus and turned them down. Sellers may not make them. Prices are shown for ingredients you named; the rest link to their register page.

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