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Comparison methodology

This page explains what GLPInfo.com covers, where our data comes from, how prices are calculated and how results are ordered. It changes only with a published revision note.

Coverage

We list UK online clinics and pharmacies offering GLP-1 weight-management treatment (currently Mounjaro, Wegovy and Foundayo). We currently list 20 providers. We do not claim whole-of-market coverage: providers appear when we can verify their identity and read their published pricing or confirm that pricing is not public. Listing is free.

Where prices come from

Every price on this site was read from the named provider's own public pages on the date shown beside it (latest check 29 Sep 2026), and each provider profile links to the exact source pages. Prices are not provider-submitted, and we do not use other comparison sites as sources. When a provider publishes only a "from" price, a price range, or a table we cannot read reliably, we mark it not confirmed rather than guessing.

How totals are calculated

  • All money is stored in pence and displayed per the provider's exact billing period - usually a 4-week supply (one pen, four weekly doses).
  • First-period (month) total = the published new-customer total where one exists, otherwise the standard period price. Conditions are shown alongside.
  • Repeat-period (month) total = the provider's normal recurring price for the same dose, ignoring introductory offers.
  • Horizon estimate = first period + repeat period × (periods − 1), for 3, 6 or 12 periods (months), at a constant dose. It is an illustration, not a quote.
  • A price that is not confirmed is excluded from price-led ranking and never treated as £0.

How results are ordered

Every sort order is objective and published: lowest first-period (month) total, lowest ongoing total, lowest horizon estimate, or most recently checked. No commercial factor - payment, referral fees, promoted placement or ownership - is an input to any organic sort. Promoted placements appear only in a visually separate, labelled block.

Freshness and corrections

Each price carries the date it was checked. When we cannot re-verify a price within a reasonable window it will be flagged as stale and removed from "lowest price" comparisons until re-checked. Verified material errors are corrected or hidden as our highest priority - report incorrect information here.

Reviews

Review scores are read from each provider's public profile on Trustpilot, an independent third-party review platform, on the evidence date shown. Every score links to the Trustpilot profile, where you can see the number of reviews behind it and read them. We do not collect our own consumer reviews yet, and a Trustpilot score is not a GLPInfo endorsement.

What "checked" means - and what it does not

  • Price checked: we read this price on the provider's public page on the stated date. It is not a guarantee of today's price or stock.
  • Not confirmed: we could not read a reliable figure from public pages. It does not mean the provider is more expensive - it means you should check with them directly.
  • We do not verify clinical quality, prescribing decisions or treatment outcomes, and a listing is not a recommendation.

Methodology version 1.0 - published 14 Aug 2026.