Janoshik Analytical is the name printed in the laboratory position on 10 documents in the register, published by Prime Peptides. Every one of them carries a lot identifier; every one is dated, the earliest 2025-08-14 and the latest 2026-05-26; 7 print a purity figure, between 98.732% and 99.967%. The method printed is HPLC. The documents are web page files, covering 9 distinct peptides.
The desk's laboratory explainer notes that this name is spelled three ways across supplier sites (Janoshik, Janoshik Analytical, Janoshik Laboratory), that the laboratory states on its own site that it operates from the Czech Republic, and that it publishes a report-lookup function; documents printed with the short spelling are filed on a separate page because the register keeps each spelling as printed.
A laboratory name on a certificate is the supplier's statement that this laboratory produced the report. The desk records it as printed and does not merge spellings, rank laboratories or confirm the report with the laboratory on a reader's behalf; what a name does make possible is the question, which is set out in How to verify a peptide COA with the lab and Peptide testing labs explained. A purity figure in the table is the laboratory speaking about one lot on one date, not a score.
Also in the register under another spelling: Janoshik (23 documents). Each spelling is kept as the documents print it.