Many of these precious Japanese incenses - widely regarded as unrivaled for refinement and quality - are still produced today according to ancient original formulations as well as taking inspiration from reworked versions of the same that date back to the second half of the 19th century.
It is important to remember that they do not contain wood, i.e. the characteristic bamboo core typical of most of the incense sticks found on the market which, when burning, produces carbonaceous emissions that are as unnecessary as they are harmful.