For vendors: join the panel

Visitors compare for free. A vendor on the panel pays a fixed fee only for business that came through this site, and the ranking stays arithmetic. It is the model the big price-comparison sites run on, applied to peptides.

Claim your business What the crawler reads

What a contract brings you

Visibility, verified

The verified mark on every one of your products, on every quotation and in every country you ship to. A vendor page of your own with your live status and your product count. Your test report linked beside each product.

Your prices, your hand, every hour

Publish a feed and your prices are read from it every hour, dated to the hour, instead of being read from your pages every four hours. Out of stock, a new batch, a new price: on the site within the hour.

Orders you can see

Every click to your shop carries ?ref=comparethepeptide&ctp=<id>. Post each order back, or send a monthly statement; you see what the site brought you, and you pay only for that.

What it does not bring: a higher place. Best price, best value and best overall are arithmetic over your product's own numbers, printed on every card. The fee is the same whatever the rank.

The fast way to visibility: put on your pages what CTP AI asks for

The crawler reads a page exactly on its next run. A page that carries the following is quoted completely, with nothing left as "not stated":

JSON-LD Product on every product page, with an offers block: price, priceCurrency, availability, url.
The peptide name and the milligrams in the product name ("BPC-157 10 mg"); for a layered product, every peptide named and the total.
A word for the format in the name: vial, pen, kit, pre-mixed.
A link to the batch's test report, and the batch, in the feed (fields test_report_url, batch); in the feed too, your own usable-days figure for a product, which replaces the 28-day convention and is labelled as yours.
A sitemap that lists the product pages; robots.txt that allows CTP-AI; no bot challenge in front of it. Two of the seven seed vendors serve no structured product data at all and are therefore quoted with nothing, which the report shows.

With a feed, the required fields are name, url, price, currency; the rest make the quotation exact. The schema and an example are on the crawler page.

How we are paid

the one UK price-comparison sites use: free to the visitor, no advertising, no sponsored positions; the vendor pays a fixed fee only for business that came through the site, and the fee is the same whatever the product's rank

Status: draft of 2026-10-09; the figures are confirmed vendor by vendor in the panel agreement sent after a claim is verified.

per order: a fixed fee per order placed after a click-out from this site, attributed by the ?ref=comparethepeptide&ctp=<id> reference on the link. Draft fee: GBP 3.00, EUR 3.50.
per click: a fixed fee per click-out to the vendor's product page. Draft fee: GBP 0.30, EUR 0.35.

Never

the fee never enters the ranking: best price, best value and best overall are arithmetic over the product's own numbers, printed on every card
no vendor can buy a position, a badge or a word on the site
a vendor not on the panel is gathered, ranked and linked exactly the same way; the panel adds the feed, the test-report link and the verified mark, not a better place

How orders are counted: the vendor's shop records the ref/ctp parameters from the click-out and either posts each order to /sale.php with its panel key or sends a monthly statement; this site keeps its own click count to reconcile against

Statement: monthly, per vendor, listing click-outs by month and the orders reported, with the fee that follows from the option the vendor chose

The full text is published as panel_terms.json.

Five steps

Claim your business: your domain, a contact e-mail, your country, and the feed address if you have one. You receive a token and a panel key.
Publish the token (a text file at /.well-known/ctp-verify.txt or at /ctp-verify.txt, or a meta tag on your home page). The crawler verifies it within the hour.
Publish the feed (optional). Read hourly from then on.
Keep the ref and ctp parameters your shop receives on each click-out, so an order can be attributed.
Post each order to /sale.php with your key, or send a monthly statement; the fee follows the option you chose.

Vendors on the site today

The seed list, one page each. Claimed and verified vendors are on panel.json; every domain the daily discovery found, with its evidence, on discovered.json.

Panacea Bio Chem panaceabiochem.co.uk · GB
Kensington Labs kensingtonlabs.co.uk · GB
Rituals Genomics ritualsgenomics.com · GB
Biovanta Research biovantaresearch.com · GB
Planet Bio Labs planetbiolabs.com · GB
Rexha Research rexharesearch.com · GB
Biovanta Research (Ireland) biovantaresearch.irish · IE