All our peptides undergo batch-specific quality control before release. Each batch receives a unique lot number, is tested under controlled laboratory conditions, and is supplied with its own Certificate of Analysis (COA), so the data always refer to the exact material in stock.

Testing is performed by an independent accredited laboratory using validated analytical methods. HPLC is used for content and purity, with mass-spectrometry and spectral comparison applied where appropriate to confirm peptide identity.

Additional microbiological and safety screening is carried out on selected batches, including bioburden (USP <61>), bacterial endotoxin by chromogenic LAL assay (USP <85>), and elemental impurity screening for key heavy metals. Only lots that meet predefined specifications for identity, purity and safety are released.

Full COAs for current batches are available on our website for researchers who wish to review the raw data. All products are supplied as traceable, analytically verified materials intended strictly for laboratory and scientific research use only; they are not medicines and must not be used in humans or animals.