Verified Supplement Data Primary-sourced
UK edition — buy links go to Amazon.co.uk; products and prices shown are our US catalogue in USD until UK pricing is live. 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, and cost per day for comparison. Every buy button opens the product on Amazon.co.uk.

What is UK-specific here, and what is not yet. The guides, doses and testing status apply to the products wherever they are sold. The prices and cost-per-day figures are from our US catalogue in USD: use them to compare products with each other, not to budget in pounds. A UK price feed with UK-market products is the next step for this edition; until then a buy button opens an Amazon.co.uk search for that product, so a brand not sold in the UK shows you the closest listings instead of a dead page.

Best overall — ranked by dose, licensing and cost per day

Dosage guides

Comparisons

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