This COA was tested by Janoshik, an independent third-party lab. The report is an endotoxin test for 'Primo 200' from Qingdao Sigma Chemical Co., Ltd, showing 0.006 ± 0.001 EU, which is below the assay certainty range (<0.010 EU/ml). However, this is not a peptide purity or quantification analysis, and the test recency is unknown. Customers can cross-check on the lab's public verification URL.