Certainty, measured.
Medu Laboratories procures peptides and research compounds under blind protocols, submits them to accredited commercial laboratories, and publishes every result — favourable or not. 16,294 samples across 198 vendors and 295 products, on the public record.
The Current Tables
Updated 28 May 2026Tirzepatide(GLP-1 and GIP agonist)
I Tianjin Finder Chemical TFC A II Trusted Peptide A III Risynth Bio A IV Aavant Research A V Nantong Guangyuan Chemical GYC ARetatrutide(GLP-1, GIP, and GCGR agonist)
I Tianjin Finder Chemical TFC A II Bulk Peptide Wholesale A III Paradigm Peptide A IV NUPEPS Peptides A V Peptide Partners ASemaglutide(GLP-1 agonist)
I Tianjin Finder Chemical TFC A II Bulk Peptide Wholesale A III Injectify A IV Shanghai Sigma Audley SSA A V NextechLabs ABPC-157(Bepecin)
I Tianjin Finder Chemical TFC A II Qingdao Sigma Chemical QSC A III Glbiochem (Shanghai) A IV Shanghai Sigma Audley SSA A V Wuhan Wansheng Bio (WWB) ADiscretion in procurement.
Rigour in analysis. Candour in print.
Procured blind
Samples are purchased as any client would purchase them — unannounced, at retail, under neutral names. Vendors cannot curate what we receive.
Assayed independently
Accredited laboratories confirm identity and quantify content and chromatographic purity, then screen for heavy metals, bacterial endotoxins and sterility. The laboratory never knows the vendor; the vendor never knows the laboratory.
Published in full
Every certificate enters the public ledger — the flattering and the damning alike. A rating you cannot lose is a rating not worth having.
Every vial, measured on six axes
One sample · one full panelPurity is necessary but never sufficient. A powder can be chromatographically pure and still carry toxic metals, fever-inducing endotoxins, or live microbial growth. Each Medu Laboratories sample is therefore taken through the complete panel below — and any single failure is published in full, never averaged away.
Identity
Confirms the molecule in the vial is the one on the label, by mass — not a cheaper or substituted compound.
Purity
Quantifies chromatographic purity and every related-substance and degradation peak, individually.
Content & potency
Measures the actual mass of active present and compares it against the vendor's claim.
Heavy metals
Screens for lead, arsenic, cadmium and mercury left behind by reagents, catalysts and glassware.
Bacterial endotoxins
Detects pyrogens that survive sterile filtration and cause fever and reactions on injection.
Sterility & bioburden
Confirms injectable presentations carry no viable bacterial or fungal contamination.
For the public — a free assay
Hold a vial you cannot vouch for? Send it to the house. We will have it analysed at no cost and enter the result into the ledger, for the benefit of all.
For vendors — the programme
Houses that welcome scrutiny may join the vendor programme: complimentary testing, detailed findings, and a Medu Laboratories certificate for those whose product withstands the instrument.