Lab reports
Every batch is tested by an independent laboratory before it goes on sale. Find the batch number on your vial label and open the matching report.
All batches
The first batch report appears here when the batch goes on sale.
How we test every batch
Before a batch of R3TA goes on sale, sealed vials from that batch go to an independent analytical laboratory. The lab checks two things: that the material is retatrutide, and how pure it is.
- Identity by mass spectrometry. The lab measures the molecular mass of the peptide and compares it with the theoretical mass of retatrutide (about 4731 Da).
- Purity by HPLC. Reverse-phase HPLC separates the peptide from related impurities. Purity is the share of the main peak in the total peak area.
- One report per batch. Each certificate of analysis names the laboratory, the test date and the batch number. The same batch number is printed on every vial from that batch.
The report for your batch is printed and packed in your box, and published on this page. If a result ever falls below our specification, the batch does not go on sale.
What we test
- Purity by reverse-phase HPLC
- Identity by mass spectrometry
- Batch number, test date and laboratory on every report