Barn

Barn provides a certificate for every batch tracked, placing it above the site median of 85% coverage. Purity is consistently high across all 27 batches, with a median of 99.6% and a floor of 98.24%. One endotoxin test failed, and a flagged Tirzepatide batch (K748-004) was subsequently tested by the community blind study, which found it under-dosed across three replicate measurements despite high purity. No direct problem reports have been filed against batches from this vendor.

Written from the batch and test records on this page. Every certificate counted here was commissioned by the vendor — no independent test has been submitted to the site. Updated 2026-10-17.

Evidence Summary

53 certificates seen. 9 of them name no lot we can match a vial to, so they are not counted in the figures above.

Last vendor certificate: 1 week ago

Batch History

Community Sentiment

Recent Test Results