We restock and retest continuously. Every new batch goes through the same HPLC and mass-spec verification and ships with its own published Certificate of Analysis — so “new” never means “unproven.”
Each batch carries its own lot number and Certificate of Analysis. When a new batch lands, its COA is published alongside it — purity, identity, and lot data, all on the record. The freshest stock and the newest test results are always reflected in the live catalog.
Browse the full current catalog to see what's in stock now, or head to the COA library to read the test data for every batch we've shipped.