The Blue rose’s, which is rare and difficult to cultivate, refreshing scent is characterised as different from the other conventional roses. Roses usually do not have the synthetase of blue dye (delphinidin). Therefore it was assumed that blue roses cannot be made. Yet newest research discovered the unique blue dye Rosacynanine, which is inherited in a recessive heredity, proves that blue roses can be produced even in nature. The ingredients are extracted and distilled from the blue rose grown in the Okhotsk region of Hokkaido.