Sermorelin is a synthetic 29-amino-acid fragment of growth hormone-releasing hormone (GHRH). When evaluating a sermorelin research peptide, focus on three factors: Identity: Mass spectrometry can help assess whether the measured molecular mass matches the expected compound. Purity: HPLC reports relative chromatographic peak areas, which do not automatically establish total sample purity or biological activity. Documentation: A batch-specific Certificate of Analysis (COA) should identify the material, testing methods, reported results, and relevant laboratory details. These checks help distinguish documented analytical findings from claims that the available evidence may not establish. 1. What Is Sermorelin? Sermorelin is a synthetic peptide corresponding to the first 29 amino acids of human growth hormone-releasing hormone (GHRH). GHRH is involved in regulating growth hormone secretion. Its defined amino acid sequence provides a reference for analytical identification. However...