Is there a place to sell Bian Shi combs in Beijing? It's best to be in a physical store, don't trust the internet?

Bian Shi comb is one of the common products in Bian Shi. Although there are many places to buy, most of them are informal. When buying, it is usually recommended to go to a big pharmacy or a stone physiotherapy equipment store. Bian Shi products sold by regular merchants are not only completely qualified in quality, but also more secure in use and after sale. It is best to check whether Bian Shi's medical records and test reports are complete and formal when purchasing, and wait until all parties confirm that there is no problem before making a move.