Every lot we sell is sent to an independent analytical laboratory before it goes on sale. The reports below are the unaltered certificates of analysis we received back, published in full — identity, purity and the testing method, exactly as issued.
Each report is also shown on the page of the product it belongs to, next to the price, so you can check the material before you buy. Purity figures apply to the specific lot named in the report.
Reading a report
- Identity / mass — confirms the molecule in the vial is the peptide on the label, by its molecular weight.
- Purity (HPLC) — the proportion of the peptide content that is the target peptide, measured by high-performance liquid chromatography.
- Net peptide content — how much actual peptide the vial holds, apart from residual water and counter-ions.
If a report for a lot you received is not shown here, email admin@topgpep.co.uk with your order number and we will send it to you.
All products are supplied for laboratory research use only and are not for human consumption.











