These are the original laboratory pages for lots we have had tested: identity and quantity, and for full tests endotoxin and heavy metals too. Search by product, batch code or report number.
Need a certificate for a lot that is not listed, or a copy for your records? Message us on WhatsApp with the lot code on your vial.
A certificate of analysis is the laboratory's report on the sample it received. It states identity and purity (and for full tests, quantity, endotoxin and heavy metals) for that sample. It speaks for that lot only, not for any other lot, and it is not a medical or safety clearance. We never publish an invented, estimated or retyped number: a row is here only when the laboratory's own document is behind it.
Mass spectrometry compares the measured molecular mass with the expected mass of the peptide. A match confirms the sample is the compound named on the label.
HPLC separates the sample into peaks. Purity is the main peak's share of the total peak area, given as a percentage. Research-grade peptides usually report above 98 to 99%.
The laboratory measures the milligrams in the vial and reports them next to the labelled amount. A 10 mg vial should measure close to 10 mg.
Endotoxin (from bacterial cell walls) is reported in EU per mg or per mL. Lower is better; full tests include it, identity-only tests do not.
Reported in parts per million (or below the detection limit). Full tests include a heavy-metals panel.
The batch or lot code, the date received and the date reported, and how the sample looked. The lot code is what ties the certificate to your vial.
