^{【Product Overview】}

^{We are a specialized global supplier of Met-Enkephalin (Methionine Enkephalin), a naturally occurring pentapeptide with high affinity for the δ(delta) and μ(mu) opioid receptors. As one of the two primary endogenous enkephalins (alongside Leu-Enkephalin), it is a critical signaling molecule in the central nervous system. We provide high-purity, synthetic Met-Enkephalin to research institutions and pharmaceutical developers investigating pain pathways, stress response, and neuro-immunomodulation.}

^{【Key Advantages】}

^{Pain Research Standard: Met-Enkephalin is the biological benchmark for studying endogenous analgesia. It is the primary reference ligand used to characterize opioid receptor binding and to screen novel analgesic compounds.}

^{Neuro-Immune Modulation: Beyond pain relief, this peptide is widely researched for its "bi-directional" communication role between the nervous and immune systems, specifically influencing lymphocyte proliferation and macrophage activity.}

^{Short Half-Life Utility: Its rapid enzymatic degradation makes it an ideal candidate for studies requiring transient receptor activation without the prolonged desensitization effects caused by synthetic opioids.}

^{High Purity Assurance: We guarantee ≥98.0% purity (HPLC). Our synthesis ensures the precise sequence (Tyr-Gly-Gly-Phe-Met) integrity, minimizing oxidized methionine by-products that can compromise receptor affinity.}

^{【Logistics & Service】}

^{Cold Chain Logistics: Enkephalins are susceptible to enzymatic breakdown and oxidation. We ship strictly using validated thermal packaging (insulated boxes with ice packs) to preserve bioactivity during global transit.}

^{Global Export: We are experienced in shipping neuroscience peptides. We provide full HS Code support (typically 2937.19) and non-controlled substance declarations to facilitate smooth customs clearance to the US, EU, and Asia.}

^{Analytical Data: Every batch is accompanied by a Certificate of Analysis (COA), Mass Spectrometry (MS), and HPLC chromatogram to verify purity.}

Regulatory Disclaimer: This product is supplied as a Chemical Reference Standard or API Intermediate for laboratory research (R&D) and further manufacturing use only. It is NOT intended for direct human therapeutic use, clinical injection, or patient administration without regulatory approval.