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BestCapsules

Find capsules by goal

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

Anything you already take or are considering?

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.

Metabolism and Weight and Skin, hair and nails

16 capsules across 20 ingredients

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.

Weight. The register takes a strict line on weight claims, and very little is authorised. This page shows the real status of ingredients people discuss for weight, quoted exactly. The NHS Better Health programme below is the evidence-based starting point.

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.

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

2 authorised claims · 4 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 energy-yielding metabolism” · Metabolism

All 4 vitamin c capsules

Calcium

1 authorised claim · 3 capsules · ingredient page
  • “Calcium contributes to normal energy-yielding metabolism” · Metabolism

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

Magnesium

1 authorised claim · 3 capsules · ingredient page
  • “Magnesium contributes to normal energy-yielding metabolism” · Metabolism

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

Zinc

7 authorised claims · 3 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

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 weight or metabolism: the register refused 5 claims there.

Iron

1 authorised claim · 1 capsule · ingredient page
  • “Iron contributes to normal energy-yielding metabolism” · Metabolism

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

Manganese

1 authorised claim · 1 capsule · ingredient page
  • “Manganese contributes to normal energy-yielding metabolism” · Metabolism

Assessed by the register and not authorised

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