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Founded with a dedication to scientific rigor and biochemical innovation, ShanDong zhiPeptide provides top-tier research institutes, biotechnology laboratories, and global clients with industry-leading peptide formulations.
Our modern synthesis and freeze-drying manufacturing base operates under strict ISO & GMP cleanroom standards. With cutting-edge solid-phase peptide synthesis (SPPS) and liquid chromatography purification, we ensure each batch delivers consistent purity exceeding 99%.
Every single production lot undergoes independent third-party analytical testing by Janoshik Analytical, verifying molecular weight, sequence fidelity, and chemical purity before release.
Decades of biochemical mastery in custom polypeptide synthesis, modification, and lyophilization.
Transparent third-party verification for each production batch. Full testing sheets available publicly.
Safe, reliable worldwide shipping with 100% reship guarantee if transit customs encounter issues.