Is Zhang Zhongjing's Hunan Ai Qingzi reliable?

Reliable. Hunan Zhangzhongjing Pharmaceutical Co., Ltd. is an enterprise specializing in the research, development, production and sales of traditional Chinese medicine, with independent intellectual property rights, modern production equipment and high-quality R&D team. The main components of its Aiqingzi essence are natural plant extracts, including various Chinese herbal medicines such as Folium Artemisiae Argyi and Rhizoma Gastrodiae, which have a good complementary effect in traditional Chinese medicine theory and can help consumers to alleviate some physical discomfort to some extent through clinical verification. Its products have passed ISO900 1 quality management system certification and ISO 1400 1 environmental management system certification, so it is a trustworthy brand.