The Essential Oil of Spearmint is extracted by steam distillation of flowering tops of the spearmint plant. The main components of this oil are Alpha Pinene, Beta Pinene, Carvone, Cineole, Caryophyllene, Linalool, Limonene, Menthol and Myrcene. The most abundant compound in spearmint oil is L-Carvone which gives spearmint its distinctive smell. it appears as a clear , pale yellow or greenish yellow liquid.

Dementholised Mentha Oil (DMO) is obtained from fractional distillation of Mentha Arvensis Oil along with the Dementholised oil recovered after Crytsallization of Menthol. The main constituent of DMO is L-Menthol and it may range from 20% to 70%. It is a transparent liquid  that may appear to be pale yellow to colorless. DMO is also known as Peppermint oil or Cornmint oil in different parts of the world and has multiple grades. It may be terpeneless or with terpenes. It has a pleasant minty odour. 

The oil is obtained by the steam distillation of dried tubers of Curcuma Longa L. The product is a free-flowing liquid that is pale yellow to orange yellow in colour and it has a strong spicy turmeric odour.