... can yield about 2 - 4 % oil.Ginger Oil Chemical CompositionThe essential oil has various chemical constituents including the ... following: a-pinene, camphene, b-pinene, 1,8-cineole, linalool, borneol, y-terpineol ... , nerol, neral, geraniol, geranial, geranyl acetate, b-bisabolene and zingiberene.Ginger Oil PrecautionsGinger oil is non ...