--- title: "Primara Labs Batch Reports: Lab Results per Batch" url: https://www.primaralabs.com/coa source: Primara Labs, markdown mirror of the HTML page --- # Testing, batch by batch. Primara Labs batch reports: each laboratory report is published here per batch, with the laboratory's own verification key as plain text and a link to its verification page. The first is Janoshik's bacterial endotoxin report for retatrutide 20mg batch RETA-4728-A, analysed 21 September 2026. How to Read a Peptide COA in the Philippines (Spot Fake Reports)1:34·[Transcript and chapters](https://www.primaralabs.com/videos/how-to-read-a-peptide-coa) Issued ## Reports, with the laboratory's own key ### Retatrutide 20mg · Bacterial endotoxin · RETA-4728-A This report covers bacterial endotoxin only. It does not establish identity or purity. Laboratory Janoshik Compound [Retatrutide 20mg](https://www.primaralabs.com/marketplace/retatrutide) Batch RETA-4728-A Analysis date 21 September 2026 Test Bacterial endotoxin (LAL) Covers Bacterial endotoxin only Result Endotoxin: 6.066 EU per vial Ordered, received 12 September 2026, 17 September 2026 Task number 234146 Verification key H2KI86I8GWB4 [Verify at Janoshik](https://verify.janoshik.com/tests/234146_H2KI86I8GWB4)[Report as issued](https://www.primaralabs.com/coa/janoshik-234146.png)Reading an endotoxin result https://verify.janoshik.com/tests/234146\_H2KI86I8GWB4 The report as Janoshik issued it. The key printed at its foot is the one above. Endotoxin ## Reading an endotoxin result Endotoxin is a fragment of the outer wall of certain bacteria. It remains after bacteria are killed or filtered out, so a sterile material can still carry it. Laboratories measure it with the LAL test and report it in endotoxin units (EU), a measure of biological activity rather than weight. Janoshik reports endotoxin per vial. Retatrutide 20mg batch RETA-4728-A measured 6.066 EU per vial. The pharmacopeial threshold used for parenteral materials is 5 EU per kilogram of body weight per hour. When comparing results between sellers, check the unit first. Per vial, per mg and per mL figures are not interchangeable. This result does not show identity, amount or purity. Reports covering those will be published on this page per batch as they are issued. ### What is an endotoxin unit (EU)? An endotoxin unit is a measure of the biological activity of bacterial endotoxin, not of its weight. Laboratories derive it from the LAL test, and Janoshik reports it per vial. ### Why is sterile not the same as endotoxin-free? Sterile means no living microorganisms. Endotoxin is a fragment of the outer wall of certain bacteria that remains after they are killed or filtered out, so a sterile material can still carry it. ### What does the retatrutide 20mg endotoxin report not cover? This report covers bacterial endotoxin only. It does not establish identity or purity. It says nothing about amount either. Reports covering identity, amount and purity will be published on this page per batch as they are issued. How to read this page ## What a row says, and what it does not Every row names what its report covers and what it does not establish. A report that carries no figure for something is described that way here rather than with a threshold or a range. The batch number on your vial is what a row is matched to. ## Checking a report yourself Where a laboratory issues a public reference, the row carries it as text and as a link to the laboratory's own page. Compare what the laboratory shows with what this row shows; if they differ, the laboratory is right and we correct the row. [What we do and do not claim](https://www.primaralabs.com/trust)[Editorial standards](https://www.primaralabs.com/editorial-standards)[Guarantee](https://www.primaralabs.com/guarantee)[Reviews from verified orders](https://www.primaralabs.com/reviews)[Catalogue](https://www.primaralabs.com/marketplace)