Because most of the selenium-enriched cups are fake, pure concept products, even if selenium ore is added in the production process, will directly evaporate in the firing process, because selenium reaches the evaporation point at more than 200 degrees, so the finished product has no selenium at all, and even if there is selenium, it is inorganic selenium, which has poor stability, poor absorbability and great security risks. Dare you use it?

How can a cup that can really supplement selenium cost hundreds of dollars? You get what you pay for!