Essential oil is 100% natural made extracted from organic compound secreted from fragrant herb.
Fragrant herb has fragrant molecule inside of the seed,flower,leaf,root.
Manufacturing method is different from characteristics of plant ingredients which becomes raw materials.
Vapor will steam plant raw materials and secrete fragrant ingredients.
(Such as lavender peppermint eucalyptus frankincense)
secrete by pressing peel of citrus fruits.
(Such as orange grapefruit lemon)