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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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Joints and Skin, hair and nails and Metabolism

15 capsules across 24 ingredients

Joints. Joints carry the largest set of refused claims in the register: glucosamine, chondroitin, MSM, turmeric and collagen-for-joints wording were all assessed and turned down. What is authorised is narrow and quoted exactly on the ingredient pages: vitamin C for normal collagen formation for the normal function of cartilage, and manganese for normal formation of connective tissue. Versus Arthritis is the specialist charity for anything beyond nutrition.

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.

Metabolism. The register's phrase is 'contributes to normal energy-yielding metabolism', and many everyday vitamins and minerals hold it. It is not a claim about weight or about feeling energetic, which is why this goal sits apart from Weight and from Tiredness and fatigue. Wording is quoted exactly on each ingredient page.

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

Vitamin C

3 authorised claims · 7 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 cartilage” · Joints
  • “Vitamin C contributes to normal energy-yielding metabolism” · Metabolism

All 7 vitamin c capsules

Zinc

7 authorised claims · 5 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
  • “Zinc contributes to normal carbohydrate metabolism” · Metabolism
  • and 3 more on the ingredient page

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

All 5 zinc capsules

Biotin

4 authorised claims · 2 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
  • “Biotin contributes to normal energy-yielding metabolism” · Metabolism
  • “Biotin contributes to normal macronutrient metabolism” · Metabolism

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

Copper

4 authorised claims · 2 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 maintenance of normal connective tissues” · Joints
  • “Copper contributes to normal energy-yielding metabolism” · Metabolism

Magnesium

1 authorised claim · 2 capsules · ingredient page
  • “Magnesium contributes to normal energy-yielding metabolism” · Metabolism

Not authorised for metabolism: the register refused 2 claims there.

Selenium

2 authorised claims · 2 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

Vitamin A

2 authorised claims · 2 capsules · ingredient page
  • “Vitamin A contributes to the maintenance of normal skin” · Skin, hair and nails
  • “Vitamin A contributes to normal iron metabolism” · Metabolism

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

Vitamin B12

2 authorised claims · 2 capsules · ingredient page
  • “Vitamin B12 contributes to normal energy-yielding metabolism” · Metabolism
  • “Vitamin B12 contributes to normal homocysteine metabolism” · Metabolism

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

Vitamin B6

3 authorised claims · 2 capsules · ingredient page
  • “Vitamin B6 contributes to normal energy-yielding metabolism” · Metabolism
  • “Vitamin B6 contributes to normal homocysteine metabolism” · Metabolism
  • “Vitamin B6 contributes to normal protein and glycogen metabolism” · Metabolism

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

Chromium

1 authorised claim · 1 capsule · ingredient page
  • “Chromium contributes to normal macronutrient metabolism” · Metabolism

Not authorised for metabolism: the register refused 2 claims there.

Folate

1 authorised claim · 1 capsule · ingredient page
  • “Folate contributes to normal homocysteine metabolism” · Metabolism

Iodine

2 authorised claims · 1 capsule · ingredient page
  • “Iodine contributes to the maintenance of normal skin” · Skin, hair and nails
  • “Iodine contributes to normal energy-yielding metabolism” · Metabolism

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

Niacin

2 authorised claims · 1 capsule · ingredient page
  • “Niacin contributes to the maintenance of normal skin” · Skin, hair and nails
  • “Niacin contributes to normal energy-yielding metabolism” · Metabolism

Riboflavin

3 authorised claims · 1 capsule · ingredient page
  • “Riboflavin contributes to the maintenance of normal skin” · Skin, hair and nails
  • “Riboflavin contributes to normal energy-yielding metabolism” · Metabolism
  • “Riboflavin contributes to the normal metabolism of iron” · Metabolism

Assessed by the register and not authorised

The register looked at claims for these relating to joints and skin, hair and nails and metabolism 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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