In 2022, the top three domestic peptide brands were Tongrentang, Yangshengtang and Tomson Bianjian, so the best peptide was Tongrentang.

Tongrentang is a well-known polypeptide manufacturer in China, specializing in the research, development, preparation and production of high-purity peptides, immune peptides and polypeptides. Its main products include peptides, polypeptides, protein, antibodies, antigens and bioactive small molecules.