Stone tablets can be called "stone tablets" regardless of whether they are true or false. Because of this statement, the bian stone market is mixed, Muyu stone, Lingbi stone and red, green and yellow stone are all called "bian stone". Although among many kerbstone materials, Spence pumice is undoubtedly the best material. But as far as the pumice in Sibin is concerned, there is indeed a problem of authenticity. At present, the shoddy and genuine "Sibin Stone" on the market is flooding, especially the three-no products sold by some vendors, which is a big hidden danger to human health! Consumers should not blindly follow suit when buying Bian Shi. It is best to buy Bian Shi made by a regular manufacturer with legal production qualification, choose a credible purchase channel, recognize the certificate of the national authority, and ask the merchants to honor the three guarantees. Carefully check and check the product trademark, manufacturer information, product implementation standard, quality certificate, medical device supervision word, or registration number in the national quality supervision department and other qualification materials in the product packaging. Certificates issued by small vendors, such as "certificates" issued by individuals or jewelry appraisal institutions, must not be easily believed, because the test scores are unclear.

In addition, don't buy the' bian stone' that costs tens of dollars on the stalls and Taobao. That thick, heavy and hard stone is not bian stone at all! As far as I know, 90% of bian stone on the market is fake! I spent 30 yuan on Taobao to buy the stone tablet, which is the same as the one on the stall. The work is rough and the wholesale price is 5 yuan each! It was tested by a friend's unit and did not contain strontium and rare earth components at all. Their test reports are copied! Jewelry Appraisal Certificate was bought by 10 yuan! It says "microcrystalline limestone". Later, I learned that both marble and stone used in inkstone are called microcrystalline limestone, which can't explain the composition at all! In addition, the bian stone sold by Tongrentang drugstore downstairs in my house is "Sibinbao brand", and the manufacturer is Beijing Sibinbian Bian stone science and technology development center. Only one dealer sells it online. After reading it, the clerk also said that what I bought was fake, and the hardness and weight were wrong. Because the test costs a lot of money, it is impossible to pass the test so cheaply. Regular pharmacies and big websites simply don't sell this kind of rough work. Don't be greedy and cheap. Go to Tongrentang Pharmacy and compare the workmanship of the stone stall to know the difference. Don't blindly follow the trend when buying Bian Shi. Look more and compare more. If you are serious, you won't be cheated!

I hope it helps you.