LabIndependent verification
Lab analyses you can
verify at the source.
Every batch is tested by Janoshik Analytical — one of the industry's leading independent laboratories — on three separate criteria: purity, endotoxins and heavy metals. Each report is viewable in the original and verifiable directly at Janoshik.
≥99%
HPLC purity
per batch, never inferred
< 1 EU/mg
Endotoxins (LAL)
research reference limit
ICH Q3D
Heavy metals (ICP-MS)
guideline benchmark
01Published certificates
Batch reports, in the original.
Each card is a real Janoshik test with a passing result and a link to the source report. More batches are published here as they are released.
Retatrutide
· GLP-III · 10 mgGHK-Cu
· 50 mgOrdering a compound not yet published here? Its independent batch analysis is published as soon as the batch ships — matched by the batch number on the vial.
02What the values mean
Three independent criteria — because one is not enough.
A peptide can be 99.9% pure by HPLC and still carry endotoxins or heavy metals. Only testing all three shows the full picture.
Purity · HPLC
High-performance liquid chromatography separates the sample into its components and shows exactly what percentage is the intended peptide — and how much is foreign peptide or by-product. A single tall peak on a flat baseline is what ≥99% purity looks like.
Endotoxins · LAL
Endotoxins are bacterial residues, measured in EU/mg (endotoxin units). The LAL test detects them with high sensitivity — the lower the value, the cleaner the production. Measuring minute traces is normal and a sign of a sensitive assay, not a fault.
Heavy metals · ICP-MS
ICP mass spectrometry detects the smallest quantities of heavy metals such as lead, arsenic, cadmium or mercury — residues that can come from raw materials or synthesis and that HPLC does not capture. Benchmarked against ICH Q3D guideline limits.
- Who tests our research peptides?
- Every published batch is analysed by Janoshik Analytical, an independent third-party laboratory. The original reports are linked on this page and can be verified directly on janoshik.com — you never have to take our word for it.
- What is tested on each batch?
- Three independent criteria: purity by HPLC, endotoxins by the LAL test, and heavy metals by ICP-MS. A peptide can be 99.9% pure by HPLC and still contain endotoxins or heavy metals, so each criterion is tested separately.
- Can I see the analysis for the batch I order?
- Yes. Every vial carries a batch number that maps to its independent batch analysis, published on this page. Materials are supplied for in-vitro laboratory research only.
Verified purity, verified identity, documented per batch — ready for your research in Cyprus and across the EU.
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