First of all, Nanjing Tongrentang is a time-honored brand in China, and biological lysozyme is a bacterial enzyme beneficial to human body. When added to toothpaste, it has the function of protecting oral gums, without damaging enamel, protecting gums from decay, balancing oral pH and improving oral environment.
Nanjing Tongrentang Pharmaceutical Co., Ltd. is an enterprise that uses modern science and technology to produce traditional varieties of ancient prescriptions and comprehensive new dosage forms.