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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.

Joints and Focus and Mood

83 capsules across 34 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.

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.

Mood. The register authorises wording for some nutrients relating to normal psychological function, and this page shows which, quoted exactly. Low mood that persists deserves real support rather than a capsule; Mind's information and helplines below are a good place to start.

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 · 36 capsules · ingredient page
  • “Vitamin C contributes to normal psychological function” · Mood
  • “Vitamin C contributes to normal collagen formation for the normal function of cartilage” · Joints

All 36 vitamin c capsules

Zinc

1 authorised claim · 32 capsules · ingredient page
  • “Zinc contributes to normal cognitive function” · Focus

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

All 32 zinc capsules

Vitamin B6

1 authorised claim · 24 capsules · ingredient page
  • “Vitamin B6 contributes to normal psychological function” · Mood

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

All 24 vitamin b6 capsules

Magnesium

1 authorised claim · 18 capsules · ingredient page
  • “Magnesium contributes to normal psychological function” · Mood

All 18 magnesium capsules

Vitamin B12

1 authorised claim · 14 capsules · ingredient page
  • “Vitamin B12 contributes to normal psychological function” · Mood

All 14 vitamin b12 capsules

Biotin

1 authorised claim · 13 capsules · ingredient page
  • “Biotin contributes to normal psychological function” · Mood

All 13 biotin capsules

Copper

1 authorised claim · 9 capsules · ingredient page
  • “Copper contributes to maintenance of normal connective tissues” · Joints

All 9 copper capsules

Iron

2 authorised claims · 9 capsules · ingredient page
  • “Iron contributes to normal cognitive function” · Focus
  • “Iron contributes to normal cognitive development of children” · Focus

All 9 iron capsules

Iodine

1 authorised claim · 8 capsules · ingredient page
  • “Iodine contributes to normal cognitive function” · Focus

All 8 iodine capsules

Folate

1 authorised claim · 7 capsules · ingredient page
  • “Folate contributes to normal psychological function” · Mood

All 7 folate capsules

Manganese

1 authorised claim · 5 capsules · ingredient page
  • “Manganese contributes to the normal formation of connective tissue” · Joints

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

All 5 manganese capsules

Niacin

1 authorised claim · 5 capsules · ingredient page
  • “Niacin contributes to normal psychological function” · Mood

All 5 niacin capsules

Pantothenic Acid

1 authorised claim · 5 capsules · ingredient page
  • “Pantothenic acid contributes to normal mental performance” · Focus

All 5 pantothenic acid capsules

Assessed by the register and not authorised

The register looked at claims for these relating to joints and focus and mood 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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