No. According to QiChacha’s query: Kezhiyan is a brand trademark registered by Nanjing Qianju Biotechnology Co., Ltd. The company has a qualified industrial and commercial registration number and taxpayer identification number, and has no associated risks. The registration authority is Gulou District, Nanjing City The Administrative Approval Bureau is a legally registered formal company. So Ke Zhiyan is not a pyramid scheme.