Corrections

About the vendor that pays this site

Does Peptara Labs publish lot numbers?

Yes, on its pages rather than its vials. The Peptara Labs homepage (link pays this site) (trail read 2026-09-07) lists nine lots, each beside a certificate identifier, all tested in June 2026. The vials carry none.

Anything wrong here gets fixed the same way: write to [email protected] with the published page that settles it, plus the date you read it. A point moves when a page shows it should, and the date beside it moves too.

About the vendor that pays this site

Has a second laboratory tested any Peptara Labs lots?

Some. Peptara Labs publishes endotoxin reports from Janoshik, a second laboratory, for four lots on the certificate index (link pays this site) (trail read 2026-09-01). On their keys, Peptara Labs states the key can be checked at janoshik.com/verify, a step this site has not taken.

There is no form here, no phone number, no postal address, and no person's name to ask for. Any vendor named on this site may write, the paying one and the four that are not scored alike. An unscored vendor's items stay Not public until this site reads that vendor's own pages, and reading is the only thing that changes them.

The rule a correction has to meet is the date rule behind every point: a page, with its read date. For the sort of thing this site can and cannot settle, see who reads what you send.

About the vendor that pays this site

Which laboratory signs the Peptara Labs certificates?

Peptara Labs names the laboratory on its certificate index (link pays this site), and its trust page adds the last words (trail read 2026-09-01): Titreon Analytical, described by Peptara Labs as a third-party laboratory whose quality system is aligned to ISO/IEC 17025:2017, not itself accredited.