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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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- Blood and iron
- Blood sugar
- Bones
- Digestion
- Eyes
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- Heart
- Immunity
- Joints
- Mood
- Muscles
- Skin, hair and nails
- Teeth and gums
- Testosterone
- Thyroid
- Tiredness and fatigue
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.
Blood and iron and Skin, hair and nails and Mood
1360 capsules across 57 ingredientsBlood 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.
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
Magnesium
1 authorised claim · 334 capsules · ingredient page- “Magnesium contributes to normal psychological function” · Mood
Not authorised for blood and iron: the register refused 1 claim there.
Vitamin C
3 authorised claims · 332 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 psychological function” · Mood
- “Vitamin C increases iron absorption” · Blood and iron
Zinc
3 authorised claims · 249 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
Vitamin B6
2 authorised claims · 185 capsules · ingredient page- “Vitamin B6 contributes to normal psychological function” · Mood
- “Vitamin B6 contributes to normal red blood cell formation” · Blood and iron
Not authorised for skin, hair and nails or mood: the register refused 2 claims there.
Vitamin B12
2 authorised claims · 163 capsules · ingredient page- “Vitamin B12 contributes to normal psychological function” · Mood
- “Vitamin B12 contributes to normal red blood cell formation” · Blood and iron
Not authorised for skin, hair and nails: the register refused 1 claim there.
Folate
2 authorised claims · 138 capsules · ingredient page- “Folate contributes to normal psychological function” · Mood
- “Folate contributes to normal blood formation” · Blood and iron
Biotin
3 authorised claims · 124 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 psychological function” · Mood
Not authorised for skin, hair and nails: the register refused 1 claim there.
Vitamin K
1 authorised claim · 106 capsules · ingredient page- “Vitamin K contributes to normal blood clotting” · Blood and iron
Calcium
1 authorised claim · 96 capsules · ingredient page- “Calcium contributes to normal blood clotting” · Blood and iron
Selenium
2 authorised claims · 95 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
Iron
2 authorised claims · 87 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.
Copper
3 authorised claims · 58 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
Vitamin A
1 authorised claim · 54 capsules · ingredient page- “Vitamin A contributes to the maintenance of normal skin” · Skin, hair and nails
Not authorised for skin, hair and nails: the register refused 1 claim there.
Niacin
2 authorised claims · 46 capsules · ingredient page- “Niacin contributes to the maintenance of normal skin” · Skin, hair and nails
- “Niacin contributes to normal psychological function” · Mood
Iodine
1 authorised claim · 45 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.
Riboflavin
2 authorised claims · 36 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
Thiamine
1 authorised claim · 5 capsules · ingredient page- “Thiamine contributes to normal psychological function” · Mood
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 mood and turned them down. Sellers may not make them. Prices are shown for ingredients you named; the rest link to their register page.
- Vitamin E· 1 refused · 97
- Vitamin B1· 1 refused · 73
- Vitamin B2· 1 refused · 62
- L-theanine· 1 refused · 59
- Hyaluronic Acid· 2 refused · 52
- Vitamin B3· 1 refused · 52
- Vitamin B5· 1 refused · 52
- Apple Cider Vinegar· 1 refused · 49
- Lutein· 2 refused · 43
- L-Arginine· 3 refused · 35
- Resveratrol· 1 refused · 29
- Beta Carotene· 6 refused · 25
- Collagen· 1 refused · 23
- L-Methionine· 2 refused · 13
- Lycopene· 1 refused · 13
- L-Tryptophan· 1 refused · 12
- L-Cysteine· 1 refused · 10
- Bioflavonoids· 1 refused · 9
- Fish Oil· 1 refused · 8
- Glucosamine Sulphate· 1 refused · 8
- Royal Jelly· 1 refused · 8
- L-Phenylalanine· 1 refused · 7
- Methylsulfonylmethane· 1 refused · 4
- Spermidine· 1 refused · 4
- 5-Hydroxytryptophan· 1 refused · 3
- Borage Oil· 1 refused · 3
- Gamma Linolenic Acid· 2 refused · 3
- Soy Isoflavones· 1 refused · 3
- GLA· 1 refused · 2
- Lactoferrin· 1 refused · 2
- Omega 6· 1 refused · 2
- Papaya· 1 refused · 2
- Sea Buckthorn Oil· 1 refused · 2
- Antioxidants· 1 refused · 1
- Carotenoids· 1 refused · 1
- L-Carnosine· 1 refused · 1
- Omega-3 fatty acids· 1 refused · 1
- Para-Aminobenzoic Acid· 1 refused · 1
- Pineapple· 1 refused · 1
- Whey Protein· 1 refused · 1
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