A Certificate of Analysis (COA) is a document that provides detailed information about the purity, and quality of a peptide or compound. It's essential because it verifies that the product meets specified standards and confirms its identity, purity level, and safety for research or clinical use.

The purity percentage indicates how much of the product is the actual target compound versus impurities or byproducts. For research peptides, a purity of 95% or higher is generally considered excellent, while 90-95% is good. Higher purity typically means better consistency and reliability in research applications.

Common testing methods include High-Performance Liquid Chromatography (HPLC) for purity analysis, Mass Spectrometry (MS) for molecular weight confirmation, and various other analytical techniques depending on the compound. Each method provides specific data about different aspects of the product's quality.

COAs are typically generated for each batch of product manufactured. They remain valid for the specific batch they represent and don't expire, but newer batches will have updated COAs. We update our COAs as often as possible