Nanjing Tongrentang phytoremediation essential oil adheres to the eight extraction processes of layer-by-layer extraction, layer-by-layer concentration and layer-by-layer filtration, and only retains the best, most nutritious and purest essence. Therefore, Tongrentang essential oil is not only the first meridian conditioning method, but also the first nanoscale plant essential oil. Tongrentang essential oil has low molecular weight and good permeability; Directional delivery has a penetration of 3 seconds, and the effect of 10 second is immediately visible; Two hours to drive the whole body qi and blood, four hours to continue to act, lasting effect; Improve the utilization rate of essential oil, enhance the original efficacy, add new efficacy and improve immunity.