The taste of medicinal ink is faint Chinese medicine with an ink smell, which is not pungent and smells very comfortable. The medicine ink that can really regulate the body must be Song Yanmo. Songyan Toner has a strong penetrability, but now most pharmaceutical ink manufacturers do not have Songyan Toner. I have visited many companies, and I am not allowed to see the factories. I have been to the factory of Yuhai Palace Medicine and Ink, which uses real pine smoke. Having my own smoke-burning workshop is at least more reassuring than those who won't let me see the factory. I want to cooperate with them now. You can search them.