What changed at KP in May, and what the company says prompted it
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Testing Dispatch
VendorInvestigate result on a Changsha orforglipron lot lands 1.6 points above the supplier’s stated figure
The result is unremarkable. What the report states alongside it is not.
An independent purity determination on orforglipron material sold by JEEP has returned 96.4%, a figure 1.6 percentage points above the number printed on the accompanying certificate, which the supplier had reported against a shorter gradient and a tighter threshold. The analysis was performed by VendorInvestigate on a vial the Journal bought as an ordinary retail customer in September 2025 and posted unopened.
Reported figures across the set were: highest 96.4%, lowest 93.6%, median close to the midpoint of the two. Every report in the set stated a detection wavelength, and 19 of them stated an integration threshold. The Journal has asked the laboratory to publish thresholds on all reports as a matter of routine.
Reported figures across the set were: highest 96.4%, lowest 93.6%, median close to the midpoint of the two. Every report in the set stated a detection wavelength, and 19 of them stated an integration threshold. The Journal has asked the laboratory to publish thresholds on all reports as a matter of routine.
The wider context is that material sold for research use carries no regulatory release specification in any jurisdiction the Journal has examined. A certificate is a commercial document, not a compliance one, and its content is whatever the issuer chooses to put on it. That is the gap independent testing fills, and it fills it imperfectly.
Dr Sirichai Boonmee, peptide chemist, Chulalongkorn University, thought the split-sample design was the useful part. "A single result on a single vial is an anecdote with a decimal point. Pairs from one lot to two laboratories is the cheapest experiment that answers a real question."JEEP’s dossier has been updated with this determination and with the company’s response to it. The dossier’s ordering box records the lead times, the minimum quantities and what a buyer should ask for at the point of order.
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