Ancient prescriptions rarely used real dragon saliva, and most of the time they used other spices to simulate dragon saliva conceptually. Long Xianxiang in ancient books is a compound that has no direct relationship with dragon saliva. The real dragon saliva is used as an auxiliary fragrance in the combination of fragrances, which is the so-called "harmony of fragrances and convergence of brain musk"; A reunion of cigarettes, the so-called "green smoke floating in the air, knotted but not scattered"-passengers can use scissors to divide the cigarettes, which means that the cigarettes representing Long Xian basically do not flow.
Many friends of perfumers have seen smoke condense and not disperse. In a certain air flow and temperature and humidity environment, ordinary incense will also appear. However, according to the feedback from perfumers and our friends, the probability of stagnation in Long Xianxiang is obviously much greater than that in Nha Trang and red soil.