Peptide vendors that publish COAs
Of the five peptide suppliers in this index, Peptara Labs is the one this site has read, and it publishes certificates of analysis: its certificate index, at peptaralabs.io/coa and read on 2026-09-01, carries a certificate for 14 of its 16 listed items, with 2 shown as Pending. The laboratory on them is Titreon Analytical, a name that always travels here with its qualifier: described by Peptara Labs as a third-party laboratory whose quality system is aligned to ISO/IEC 17025:2017, not itself accredited. Beside those certificates sit 4 second-laboratory endotoxin reports, also published by Peptara Labs. The other four suppliers in the index read Not public in that cell, which means no verified record either way is held here and their pages have not been opened here; the cell makes no claim that they publish no certificates. Peptara Labs pays this site when an order begins at one of its links.
Row 1 lookup, the paid row
Which lab tests Peptara Labs products?
Peptara Labs certificates carry the name Titreon Analytical, and the name comes with its qualifier: described by Peptara Labs as a third-party laboratory whose quality system is aligned to ISO/IEC 17025:2017, not itself accredited. Beside that wording, its certificate index (paid source) carries the name and the alignment, and its trust page the qualifier, all read 2026-09-01. This index copies the wording whole and adds nothing to it.
The rows behind this answer
This answer reads off the index on this site's front page: row 1 is Peptara Labs, and rows 2 to 5 are four other suppliers whose pages this index has not read. The column definitions page sets out what each column holds and what Not public means.
Row 1 lookup, the paid row
What does a Peptara Labs COA test for?
Each Peptara Labs certificate covers identity by HPLC retention-time matching and LC-MS, then purity by HPLC, which must reach not less than 95.0 percent for the batch to be released. It also carries sterility, net peptide content, bacterial endotoxin, a line for five metals and a fentanyl screen by immunoassay, per its certificate index (paid source), read 2026-09-01. The five metals, lead, arsenic, mercury, chromium and cadmium, all came up Not Detected on the published batches.
Row 1 lookup, the paid row
Can a Peptara Labs COA be tied to a specific vial?
Only through Peptara Labs itself. Its vials carry no label, by design, and its certificate index (paid source), read 2026-09-01, gives a single route: message support with the order number. This index has placed no order and has not used that route.
Research use: the rows describe public pages and documents, never people, and this index gives no medical advice. Compounds named on this site: research-grade material with no approved human use.