Lot verification

Verify a lot

The lot number is printed on the vial label. Enter it and the certificate issued for that exact lot opens: what the independent laboratory measured, which laboratory, and when. No account, no application, nothing to agree to first.

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What this proves

And what it does not

A verification tool that overstates itself is worse than none. Here is the exact scope.

This does establish

  • That a certificate exists for the lot number you hold.
  • What an independent laboratory measured for that lot, on a stated date.
  • Which laboratory ran the analysis, and by which method.
  • That the compound and vial size on the certificate match what you were sent.

This does not establish

  • That the vial in your hand physically contains that lot. Only the label ties them.
  • Anything about safety or efficacy. It is an analytical record.
  • Anything about another lot of the same compound.
  • Sterility or endotoxin status, unless those tests appear on the certificate.

Why we say that plainly. A lot lookup is a chain-of-custody tool, not proof of what is in a specific vial. Any supplier claiming otherwise is overselling a database query. What it genuinely gives you is the ability to read the analytical record before you buy, and to check it against the label after it arrives.

Browse every certificate

The full library, searchable by compound as well as by lot.

How the testing works

What RP-HPLC, mass spec and net peptide content each measure, and cannot.

The aggregate dataset

Purity across every documented lot, with the distribution and the spread.