Affiliate disclosure

• Links to retailers and labs where a purchase earns us a commission. Every one is labelled at the link.
• Labelled sponsored placements in the clinic directory, which are always in their own block and never mixed into organic results.
• Pay-per-lead charges when we pass a clinic an enquiry you chose to send.

We only carry a commercial link to a product whose intervention page is graded B or better. If the grade drops below B, the links come down. That removes the most profitable part of the supplement market from us — the things with weak evidence and high margins — which is precisely why the rule is worth having.

Commission rates never vary with what we say. We do not accept payment for a review, a grade, a ranking or a placement in a comparison. See how we make money for every revenue line we have.

At the link, before the click, in plain words. Not in a footer and not on this page alone — a disclosure you have to go looking for is not a disclosure. This page exists to explain the policy, not to substitute for the label.

CAP Code rules on health and beauty claims: no claim that a product can prevent, treat or cure a human disease unless it is an authorised medicine. Prescription-only medicines are never advertised to the public, which is why dosing on drug pages is reported as study exposure and never as a recommendation. Affiliate content is identifiable as advertising at the point of the link, as the ASA requires.

• Sell our own supplements, tests or programmes.
• Run advertorial or paid editorial of any kind.
• Accept free product in exchange for coverage.
• Use affiliate performance as an input to anything editorial, including which pages we write next.