Is it true that Bian Shi bracelets sold by Beijing Tongrentang?
You can look at the composition test report, drug supervision and mechanical properties and so on. If these are all right, they are usually genuine. You can buy and use with confidence. There are many ways to identify Bian Shi's authenticity. The simplest and most practical way is to check Bian Shi's relevant qualifications and test reports. The qualification of bian Shi mainly refers to the medical device number, and the detection of bian Shi includes infrared detection, ultrasonic detection, mineral detection and limited detection of radionuclide.