Quality
Certificate of analysis
Every released vial is tied to a lot. The certificate records how that lot was tested.
GetReta tests each batch before it is packed. Identity is checked against retatrutide, CAS 2381089-83-2. HPLC purity must be at least 99 percent. Mass spectrometry is the second identity check: the observed mass should fit the peptide. Those results, the lot number and the test date are what a certificate of analysis shows.
The test date is not an expiry date and the purity figure is not a biological claim. The vial label carries the same lot as the paper in the carton. Research use only. Not a medicine.