PE-22-28 is a synthetic peptide derived from Spadin, studied in neuropharmacology and potassium-channel research. It is supplied as a high-purity white lyophilized powder at >=99% HPLC purity in sealed vials. PE-22-28 is investigated in research on TREK-1 channel modulation and related neuronal signaling, and is commonly applied in cell-based and preclinical studies. The stable freeze-dried presentation supports convenient reconstitution and reproducible dosing. The spadin-derived peptide action on TREK-1 channels connects it to fast-acting mood-regulation research, and investigators study its effects in behavioral models of depression and anxiety. Its defined sequence supports reproducible experiments. The lyophilized powder is provided with documentation. The peptide is studied in behavioral models with readouts including despair-like behavior and anxiety indices, and its channel-targeting mechanism is compared with conventional monoaminergic agents. The defined sequence supports reproducible synthesis, and each lot is released with purity verification suitable for experimental use. International orders are handled by our export department, which coordinates documentation, customs clearance and courier selection for each country. Parcels are sent with full tracking and delivery confirmation, and transit times are communicated before shipment. We also accept mixed orders of multiple peptides to simplify procurement for research teams. Questions about product use, pricing or delivery are always welcome, and our team responds quickly through multiple channels. WhatsApp: +852 4423 6619, contact person: Aurora, Email: 18963519387@163.com. We are happy to help with order planning and after-sales matters. YIWU SHUNXIAN TRADING CO., LTD. is a professional supplier of high-purity research-grade peptides and matching laboratory consumables, dedicated to supporting global research teams for biochemical and life-science studies. We bridge qualified peptide raw-material resources with stable international logistics service, offering researchers and industry partners a dependable source for their laboratory development projects. Researchers commonly select this product when batch consistency and analytical transparency are essential for long-running experiments, and our records enable full traceability.