Peptide reference materials supplied to laboratories, institutions and qualified research programmes. Purity, identity, endotoxin and residual water are published per lot and searchable by lot number — including the lots that failed and never shipped.
Fig. 1 — Certificate for lot VL-24118-A, the release currently shipping. The same document reaches you in the box and stays in the archive afterwards.
These four fields are where real credentials belong. None is filled, because a badge that is not backed by paperwork is a claim we have not earned — and in most jurisdictions, an unlawful one.
Name and scope of the contract laboratory, plus its accreditation reference.
Written fulfilment procedure showing a lot-matched certificate ships with every order.
Facility registration number and the date of the most recent passing audit.
Description of how purchase verification is performed, and by whom.
One compound per vial, lyophilised and sealed under nitrogen. Each vial ships with the certificate for its own lot.
OPENMulti-vial sets assembled from released lots. Component certificates travel with the kit and stay individually traceable.
OPENFiltration, storage and labelling consumables for handling lyophilised reference material in your own facility.
OPENDocumentationCertificate matched the vial without me having to ask
The lot on the label matched the certificate in the archive, and the endotoxin figure was already on the document rather than something I had to email for. That sounds like a low bar. Two of the four suppliers we evaluated last year could not clear it.
DocumentationThey publish their held lots
I went looking for the quarantined lot after a colleague mentioned it and found the full certificate still in the archive, marked as held, with the reason written out. Publishing a failure is the only part of a quality claim that costs anything, so it is the only part I read as evidence.
ShippingCold chain held, packaging is over-engineered
Arrived on the second morning with the gel packs still firm and the temperature indicator unbroken. My only note is that unpacking generates a genuinely absurd volume of foam for two vials. Our waste stream noticed.
