Aomori Hiba is a slow-growing, long lived cypress tree whose wood has been used in the construction of temples and notable buildings throughout Japan for centuries. Cul de Sac has developed a way to vapor extract the essential oil used in their products from waste lumber harvested from 250 year-old trees, thus recycling this useful and pleasing material.

Note: The essential oils can be used in a humidifier, a bath, or when washing laundry.