Trust & Transparency
Certificates of Analysis (COA)
Independent third-party lab reports for our retatrutide pens. Every certificate shows the batch number, measured retatrutide content and HPLC purity.
Last updated: September 2026
4
Published lab reports
≥99.0%
HPLC purity on every report
Janoshik
Independent third-party laboratory
20–60 mg
Every pen strength covered
Retatrutide lab reports
Each report below is the original certificate issued by the laboratory, matched to the batch we ship. Click any report to open the full PDF.
Click to open PDFApex Pharma✓ Independently tested
Retatrutide 20 mg Pen
HPLC purity
99.071%
Batch
001/26
Retatrutide content
7.37 mg/ml
Analysis date
04 Feb 2026
Click to open PDFApex Pharma✓ Independently tested
Retatrutide 40 mg Pen
HPLC purity
99.029%
Batch
6/2026
Retatrutide content
17.34 mg/ml
Analysis date
24 Jul 2026
Click to open PDFApex Pharma✓ Independently tested
Retatrutide 60 mg Pen
HPLC purity
99.452%
Batch
003/26
Retatrutide content
27.72 mg/ml
Analysis date
04 Feb 2026
Click to open PDFAlluvi✓ Independently tested
Retatrutide 40 mg – Alluvi
HPLC purity
99.269%
Batch
AR1739JAT
Retatrutide content
18.22 mg/ml
Analysis date
14 May 2026
How to read a COA
A quick guide to the main fields on each certificate.
Batch
The production lot the sample came from. It is printed on the report and matches the batch shown on the product page.
Purity (HPLC)
The share of the sample that is the target peptide, measured by high-performance liquid chromatography. Higher is better; all reports here are above 99%.
Retatrutide content (mg/ml)
The measured concentration of retatrutide in the liquid sample. Total content per pen depends on the fill volume.
Task number
The laboratory’s own reference number for the test, printed at the top of every report.
Need a report that isn’t listed?
New reports are added here as further batches are tested. If you need the COA for another product or batch, our team will send it to you.
Reports are published exactly as issued by the testing laboratory. All products are supplied for laboratory research use only and are not intended for human or veterinary use.