Tressurge Hair Growth Serum Fortunately, the craft and ceremony of incense were revitalized in the 1920's in Japan by descendants of the koh-do ("way of incense") masters, and in the 1960's incense schools began offering classes again. Synthetic incense is very different in composition from natural incense. Synthetic incense is typically made with a binder, usually starch, a bamboo core, which produces copious smoke and adds the smell of burning bamboo, and ignition source such as charcoal, sodium nitrate, paraffin, or a petroleum solvent.

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