Verified Supplement Data Primary-sourced
UK edition — Buy links go to Amazon.co.uk. Check the price and stock there. US edition →

Supplement guides for the UK

The same label data and evidence as the US site, cut for readers in the UK: dose per serving, which products carry an independent third-party certification. Buy buttons open Amazon.co.uk.

We show no prices on most of these pages. The guides, doses and testing status apply to the products wherever they are sold. Check the price and stock on Amazon.co.uk before you buy. A buy button always opens the product's own page on Amazon.co.uk, never a search. The magnesium guides use UK products and UK prices.

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Looking for the US edition? Start here. Canadian edition: /ca/.