Purity, verified and documented.
Peptide Lab is built on a single principle: every claim must be measurable. No marketing jargon — just verified purity, transparent batch documentation and clear research information.
Minimum purity
Research peptides
Verified reviews
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The process
Synthesis & sourcing
Research peptides are synthesised to fixed specifications and identified on a batch-by-batch basis.
HPLC analysis
High-Performance Liquid Chromatography determines the purity — our threshold is ≥99%.
Mass spectrometry
MS confirms the molecular identity and exact molecular weight of each batch.
Certificate of Analysis
Janoshik Analytical provides an independent Certificate of Analysis (COA), linked to the batch number on the label.
Batch traceability
Each vial is marked with a batch ID to ensure that results remain reproducible and traceable.
From order to delivery, in accordance with laboratory standards.
The same level of precision that we apply to our analyses is applied to every stage of your order.
Order via the online shop
Choose your research peptide and place your order in just a few minutes. Each product page shows the purity, batch details and the corresponding Janoshik COA — so you know exactly what you’re ordering.
Lab-verified quality
Each batch is verified in advance by HPLC and mass spectrometry to ensure a purity of ≥99%. No batch leaves the warehouse without an independent certificate.
Delivered chilled & discreetly
We dispatch temperature-sensitive peptides in insulated cool packaging with gel packs — discreetly, with tracking, and usually dispatched from the EU within 24 hours.
Full range
From BPC-157 to Retatrutide: a comprehensive range of research peptides, all meeting the same quality standards, batch-traceable and available for immediate delivery.
Exactly
Numbers, units and methodology. We quantify everything we claim.
Transparent
Lot numbers, COAs and sourcing are all transparent. No mystery, no exaggeration.
Reliable
Consistent content and a steady tone — the name researchers keep coming back to.