The subject wants to ask, "Is Hu Xinyu's brand products IQ tax?" No, according to Hu Xinyu's personal information of Weibo, Hu Xinyu is the founder of Thin Encyclopedia, which is a brand of China Zhituan Holding Group. It is a health care brand that took three years to launch with leading research and development technology, so it is not an IQ tax. IQ tax, also known as low IQ tax, is a popular word on the Internet. It refers to the lack of judgment when shopping, that is, the performance of low IQ, and the money spent is considered as a low IQ tax.