Verified batch reports
Retatrutide COA Library
Independent Janoshik Analytical Certificates of Analysis for every published Retatrutide batch distributed by Remy Peptides. Each entry lists HPLC purity, batch identity, lab task IDs, and verification keys you can punch into janoshik.com to pull the original report off Janoshik's server.
For in-vitro laboratory research only. Not for human or veterinary use.
Published batches
Three Retatrutide batches with full Janoshik documentation. The 20mg pen leads UAE published purity at 99.841%; the vial line is the only batch on this site with a full sterility-grade panel (heavy metals, TFA and endotoxin).
How to verify a Janoshik COA
Every Janoshik report includes a task number and a verification key. Paste the key into janoshik.com and the portal returns the original PDF off Janoshik's server, independent of Remy. If a vendor publishes a Janoshik image but no key, the image is not verifiable.
What HPLC purity actually measures
HPLC purity is the share of measured peptide that is the named compound (here, retatrutide / LY-3437943, CAS 2381089-83-2). The remainder is peptide-related — usually truncated sequences or synthesis byproducts. HPLC does not see water, salts, or residual solvents. Those need separate panels (assay, heavy metals, TFA, endotoxin), which only the vial-line batch publishes in full on this site.
Source the batches above from Remy Peptides
The COAs on this page belong to peptide batches distributed by Remy Peptides for in-vitro research. Pricing and order routes for each SKU live on the commercial site.