Press and data requests

We publish independent data on research peptide vendors. Reporters, researchers and other sites can use it for free, with a credit link.

What we track

Vendor registry: 205 vendors, each with six transparency checks on public information, its status and its history, with the evidence linked.
Price index: 4,740 listings from vendors' public product feeds, converted to price per mg and refreshed daily.
Alerts: closures, raids, warning letters, lawsuits and domain changes, each with its source.
Lab tests (planned): blind-buy testing at independent labs, with every result published. No results yet; how it will work.

Latest numbers

From the Research Peptide Vendor Report: October 2026, published Oct 15, 2026. Report snapshots are frozen, so these figures won't change after you quote them.

13.6×

Widest price-per-mg gap for one compound (Survodutide)

5.9×

Typical gap between the cheapest and dearest vendor (46 compounds)

36%

Of vendors we could check publish batch-specific COAs (48 of 135)

30%

Of vendor domains are under a year old (57 of 191)

How to cite our data

All our data is free to reuse under CC BY 4.0. Please credit Peptide Referee and link to the page you used. For example:

Peptide Referee, "Research Peptide Vendor Report: October 2026", https://peptidereferee.com/reports/peptide-vendor-report-october-2026/, accessed Oct 16, 2026.

Downloads are on the open data page, and each report links its own snapshot as JSON and CSV. Every number on the site traces to a public source or to our published methodology.

Contact

Email [email protected] with your question and your deadline. We can explain a number, walk through our method, or run a custom cut of the data: by compound, by market, or by vendor characteristics. To report an error, email [email protected]; we log every correction on our corrections page.

What we will and won't comment on

We can help with

What our data shows, and its limits
How prices, COAs, shipping and payment terms vary between vendors
The public records behind each closure, raid or warning letter we track
How to read a certificate of analysis, and what one can't prove

We won't

Give medical advice, dosing information, or a view on whether a compound is safe or effective for anyone
Recommend or endorse a vendor
Speculate beyond our data or the public record, for example about an open legal case

Independence

We don't sell peptides. Vendors can't pay for placement, scores or coverage. Read how we make money and who we are.