Lab Results

Every batch is assayed by Janoshik Analytical, a widely-recognised independent testing lab, before release. It is then sent to Testides in Toronto for our own confirmatory HPLC and mass-spec testing, and each lot's figures are published here as they clear, with its Testides report number listed in the table above. Entering that number at testides.com/verify returns the laboratory's own record — purity, measured amount, the HPLC chromatogram and a photograph of the vial. Four lots have completed both steps so far; the rest show their Janoshik result while the Testides confirmation is pending.

Both Retatrutide 20mg and 30mg lots were independently assayed by Janoshik Analytical on a blind GLP-1 panel. They're now with Testides in Toronto for our own confirmatory HPLC, as with the lots further down this page.

These lots are already independently assayed by Janoshik Analytical, the manufacturer's third-party lab. They're now with Testides in Toronto for our own confirmatory HPLC — each card below is updated with the Testides figures and report number the moment they are released.

Both lots below were submitted to Janoshik as a common GLP-1 peptide blind test. The lab was given three candidate compounds — semaglutide, tirzepatide and retatrutide — and was not told which of the three the sample was. In both cases Janoshik identified the material as retatrutide from its own analysis.

That distinction matters. A standard assay starts from the label: the lab is told what the sample is supposed to be and reports whether it found it. A blind test cannot confirm a label it was never shown, so it rules out the most common weakness in a peptide certificate — a lab result that only echoes what the vial already claims. Here, identity was established independently of the labelling.

Each lot's Janoshik reference number is printed on its card below — #207689 for the 20 mg lot and #210575 for the 30 mg lot — alongside the assayed purity and net content.

Net content on both lots assayed above label weight — 24.51 mg against a 20 mg label and 34.20 mg against a 30 mg label, consistent with the 11.88 mg recorded for the Testides-verified 10 mg lot above. Net content is the assayed mass of peptide in the vial as reported by the laboratory.

4 of 14 samples are back from Testides. The three single-peptide lots each returned ≥99.6% HPLC purity; the BPC-157 + TB-500 blend returned 98.64% combined. The remaining ten are still in testing.

We don’t ask you to take a purity number on faith. Every batch is sent to an independent third-party lab and every lot's figures are published here — single-peptide lots and pre-blended vials alike, at their actual measured HPLC purity. Any lot still at the lab carries a pending badge until its result comes back, so you always see exactly where each batch stands.