Is it safe? Personally, I think the first condition is whether what you buy is genuine or not. If it is produced by a big brand enterprise, the product is still relatively guaranteed, depending on whether the technical strength of the enterprise is the first in the industry. Personally, I think this situation is relatively safe. China Yindu produces more than 2,000 tons of silver every year. Before that, they only sold raw materials. Now, in their industrial tourism demonstration sites, you can also see silver underwear, even silver ion mobile phone cases, silver ion towels, silver ion cosmetics and so on. In the silver efficacy experience workshop in the scenic spot, they introduced Mi Shuchang in this way: silver is a kind of "bio-metal" and will not produce any toxic and stimulating reaction to the human body. Silver is a truly pure natural "green bactericide", which has no destructive effect on normal flora and normal cells of human body. Silver can inhibit almost all bacteria and extracellular viruses known at present, and will not produce drug resistance to human body. The sterilization and health care of silver has a history of thousands of years, and its safety is unquestionable, but how to identify genuine products is the core.