Every batch we release is supplied with a certificate of analysis covering identity, purity, and batch traceability. Enter a batch number below to retrieve its record. Batch numbers are printed on the product label and shown on each product page.
How each batch is tested
HPLC
High-Performance Liquid Chromatography
Separates the peptide from any related substances so its purity can be measured — reported as the percentage of the target peptide in the sample.
UV
Ultraviolet Detection
Measures how the compound absorbs ultraviolet light as it elutes from the column, used to detect and quantify the peptide peak.
MS
Mass Spectrometry
Measures the molecular mass of the compound to confirm identity — that the molecule matches the expected peptide.