Some netizens reported that this is an IQ tax. It has been advertised that this kind of cup can make the water reach the weak alkaline standard by mineralization technology, but experts said that the products sold could not make the water automatically generate this trace element. In addition, the specific content and type of the product have not been announced, which makes people doubt its authenticity.

Therefore, it is necessary to be cautious when purchasing such products, and choose according to expert opinions and personal needs.