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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.

What do you want help with?

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.

Testosterone and Weight

489 capsules across 20 ingredients

Testosterone. Only a small number of ingredients hold register claims mentioning testosterone, and this page quotes them exactly. Claims in this category are heavily marketed well beyond what the register authorises; the split below shows the line.

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.

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

Zinc

1 authorised claim · 249 capsules · ingredient page
  • “Zinc contributes to the maintenance of normal testosterone levels in the blood” · Testosterone

All 249 zinc capsules

Glucomannan

1 authorised claim · 6 capsules · ingredient page
  • “Glucomannan in the context of an energy restricted diet contributes to weight loss” · Weight

All 6 glucomannan capsules

Assessed by the register and not authorised

The register looked at claims for these relating to testosterone and weight and turned them down. Sellers may not make them. Prices are shown for ingredients you named; the rest link to their register page.

Support & information

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