Every vial carries a lot number. Every lot number resolves to a permanent page on this site that states what was measured, by whom, and by what method. That page goes up before the vial ships.
Price is quoted per milligram of net peptide content, not per milligram of powder.
Assayed by [LAB], accredited to ISO/IEC 17025:2017 under certificate [NUMBER]. The chromatogram is one click down.
Net peptide content [74] percent, stated on the same certificate. Price is per milligram of net peptide content, not per milligram of powder.
Every lot released has a permanent public page on this site, reached from the number printed on the vial. Pages are added, never removed and never edited after release.
Price is quoted per milligram of net peptide content. A peptide solid is peptide, plus a counter-ion, plus residual water, and the three are not the same thing.
A sample of every lot is retained and held under the storage condition printed on the label.
Identity, purity and net peptide content determined for every lot by [LAB], accredited to ISO/IEC 17025:2017 under certificate [NUMBER].
Every certificate is posted at a permanent public URL against its lot number, before the lot ships, and stays there.
Prices are per milligram of net peptide content, not per milligram of powder.
A purity figure printed on a vendor's website, with no method beside it and no laboratory named under it, is not a measurement. It is a number somebody chose. It cannot be checked and it cannot be audited, and it is the single most repeated sentence in this category.
So we built the company backwards from the certificate.