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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.

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Blood and iron and Skin, hair and nails and Teeth and gums

638 capsules across 45 ingredients

Blood and iron. Ingredients here hold register wording about normal red blood cell formation, oxygen transport, iron absorption or normal blood clotting, quoted exactly on their pages. Suspected iron deficiency needs a blood test before a supplement; the NHS page below explains why.

Skin, hair and nails. The register authorises specific wording for several nutrients relating to normal skin, hair or nails, and this page collects them with the wording quoted exactly. Marketing in this category runs far ahead of the register; the split below shows exactly where the line sits.

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.

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 · 167 capsules · ingredient page
  • “Magnesium contributes to the maintenance of normal teeth” · Teeth and gums

Not authorised for blood and iron: the register refused 1 claim there.

All 167 magnesium capsules

Vitamin C

4 authorised claims · 145 capsules · ingredient page
  • “Vitamin C contributes to normal collagen formation for the normal function of skin” · Skin, hair and nails
  • “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
  • “Vitamin C increases iron absorption” · Blood and iron

All 145 vitamin c capsules

Zinc

3 authorised claims · 108 capsules · ingredient page
  • “Zinc contributes to the maintenance of normal nails” · Skin, hair and nails
  • “Zinc contributes to the maintenance of normal skin” · Skin, hair and nails
  • “Zinc contributes to the maintenance of normal hair” · Skin, hair and nails

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

All 108 zinc capsules

Vitamin B6

1 authorised claim · 100 capsules · ingredient page
  • “Vitamin B6 contributes to normal red blood cell formation” · Blood and iron

Not authorised for skin, hair and nails or teeth and gums: the register refused 2 claims there.

All 100 vitamin b6 capsules

Vitamin D

1 authorised claim · 100 capsules · ingredient page
  • “Vitamin D contributes to the maintenance of normal teeth” · Teeth and gums

All 100 vitamin d capsules

Vitamin B12

1 authorised claim · 80 capsules · ingredient page
  • “Vitamin B12 contributes to normal red blood cell formation” · Blood and iron

Not authorised for skin, hair and nails or teeth and gums: the register refused 2 claims there.

All 80 vitamin b12 capsules

Biotin

2 authorised claims · 65 capsules · ingredient page
  • “Biotin contributes to the maintenance of normal hair” · Skin, hair and nails
  • “Biotin contributes to the maintenance of normal skin” · Skin, hair and nails

Not authorised for skin, hair and nails or teeth and gums: the register refused 2 claims there.

All 65 biotin capsules

Folate

1 authorised claim · 64 capsules · ingredient page
  • “Folate contributes to normal blood formation” · Blood and iron

All 64 folate capsules

Vitamin K

1 authorised claim · 55 capsules · ingredient page
  • “Vitamin K contributes to normal blood clotting” · Blood and iron

All 55 vitamin k capsules

Selenium

2 authorised claims · 45 capsules · ingredient page
  • “Selenium contributes to the maintenance of normal nails” · Skin, hair and nails
  • “Selenium contributes to the maintenance of normal hair” · Skin, hair and nails

All 45 selenium capsules

Calcium

2 authorised claims · 41 capsules · ingredient page
  • “Calcium contributes to normal blood clotting” · Blood and iron
  • “Calcium is needed for the maintenance of normal teeth” · Teeth and gums

All 41 calcium capsules

Iron

2 authorised claims · 37 capsules · ingredient page
  • “Iron contributes to normal formation of red blood cells and haemoglobin” · Blood and iron
  • “Iron contributes to normal oxygen transport in the body” · Blood and iron

Not authorised for skin, hair and nails: the register refused 1 claim there.

All 37 iron capsules

Iodine

1 authorised claim · 24 capsules · ingredient page
  • “Iodine contributes to the maintenance of normal skin” · Skin, hair and nails

Not authorised for skin, hair and nails: the register refused 1 claim there.

All 24 iodine capsules

Niacin

1 authorised claim · 20 capsules · ingredient page
  • “Niacin contributes to the maintenance of normal skin” · Skin, hair and nails

All 20 niacin capsules

Copper

3 authorised claims · 19 capsules · ingredient page
  • “Copper contributes to normal hair pigmentation” · Skin, hair and nails
  • “Copper contributes to normal skin pigmentation” · Skin, hair and nails
  • “Copper contributes to normal iron transport in the body” · Blood and iron

All 19 copper capsules

Vitamin A

1 authorised claim · 19 capsules · ingredient page
  • “Vitamin A contributes to the maintenance of normal skin” · Skin, hair and nails

Not authorised for skin, hair and nails or teeth and gums: the register refused 3 claims there.

All 19 vitamin a capsules

Riboflavin

2 authorised claims · 17 capsules · ingredient page
  • “Riboflavin contributes to the maintenance of normal skin” · Skin, hair and nails
  • “Riboflavin contributes to the maintenance of normal red blood cells” · Blood and iron

All 17 riboflavin capsules

Assessed by the register and not authorised

The register looked at claims for these relating to blood and iron and skin, hair and nails and teeth and gums 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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