If you sell research peptides in the United States, you are probably already listed here — and you did not have to do anything, pay anything, or agree to anything. This page explains how that works, what you can change, and the short list of things no amount of money will ever change.
The Peptide Index reads the public catalog pages of research-peptide storefronts every night, normalizes each listing to a comparable USD per mg, and keeps the history. Alongside that, it records public-record facts about the business behind the storefront — business-registry filings, trademark ownership, domain registration age, the TLS certificate, published agency enforcement records — and derives a trust tier from them.
None of that requires your participation, and none of it is a service we are selling you. It is the same information any buyer could assemble by hand from public sources; we just do it nightly, for every vendor, the same way. The full methodology is published, including every threshold, so you can check our arithmetic on your own profile.
This is the part worth reading carefully, because it is the reason the rest of the site is worth anything to the buyers you want reaching you.
That is not just a policy we are asking you to trust. It is built into the structure: the database views that compute a trust tier and a price cannot read the table that records who is paying us — not “do not,” but are not connected to it at all. Removing that separation would take a deliberate schema change, not a quiet decision.
Practically, this means a vendor cannot buy a better tier from us, and we would rather say so plainly than field the request. If a higher tier is what you are after, the route is the same as it is for everyone: resolve more of your business into the public record. That is what the tiers measure.
If you only ever do one thing here, make it the correction form. An inaccurate profile helps nobody, and we would rather hear it from you than leave it wrong.
A small number of things, all of them presentation or performance, none of them data:
Rates depend on the traffic we can actually demonstrate at the time, so they are not posted here. Email us and we will send the current card, along with the honest reach figures behind it.
We measure every outbound click we send to your storefront — which of our pages it came from, whether it was a repeat click in the same visit, and a coarse device class. We do not set cookies, do not record IP addresses, and store nothing that could identify an individual visitor. It is a count, not a profile.
Those numbers are yours on request, monthly, whether or not you pay us anything. If we are sending you traffic, you should be able to see how much and from where; if we are barely sending you any, you should be able to see that too, and price our conversation accordingly.
The index is new and we are not going to inflate it. It tracks 307 vendor storefronts and refreshes prices nightly, but the site only opened to the public in August 2026, so there is not yet a traffic figure worth quoting at anyone. We would rather tell you that than sell against a number we cannot support.
If you are reading this as a buyer rather than a vendor: that is the same reason nothing on this page changes what you see. The commercial side is deliberately small, deliberately labeled, and deliberately walled off from the numbers.
For a correction or a claim, use the forms — they are faster and they land in the reviewed queue: claim your profile or submit a correction.
For anything commercial, or to see the current partner rates, email partners@peptidepricehistory.com with your storefront domain. A person reads it.