History:
Eucalyptus Citriodora is a type of Eucalyptus tree in the Eucalyptus genus. This tree is indigenous to north eastern and tropical parts of Australia bEven today about 75% of the trees grown in Australia belongs to the Eucalyptus family.
Brazil and China are the largest producers of commercial Lemon eucalyptus essential oil and this tree is also grow in India, South Africa, Guatemala, Egypt, Colombia, Indonesia and Albania.
It has its  remedial history of being used in the traditional as well as modern medicine in the east and west, mainly as an aid for respiratory infections and for keeping insects at bay. The infusion made from the leaves of this tree has been used in reducing fever, treating gastric conditions and fighting against microbes causing such infectious diseases in the Aboriginal tradition.
 
Details:
Botanical Name : Eucaliptus citriodora 
Family : Myrtaceae
Country of Origin  : Brazil 
Extraction Method  : Steam Distilled
Plant Part Used  : Leaves and branche 
Note  : Top note 
Aroma : Sweet, lemony , strong , fresh 
Color : Clear to Pale yellow 
Blends well With : Bergamot, Black Pepper, Citronella, Clove, Cypress, , Frankincense, Rose Geranium, Ginger, Helichrysum, Lavender, Lemon, Sweet Orange, , Patchouli, Peppermint, Ravintsara,  Tea Tree, Thyme, Vetiver.
Shelf Life : 4 – 5 Years 
 
Safety 
Possible skin sensitizer 
For topical application don’t use directly on skin, dilute with a carrier oil 
A patch test should be performed before use for those with sensitive skin.
Discontinue use if skin sensitivity occurs 
Add 4-5 drops for Diffusing 
Don’t ingest 
Keep out of reach of children , Avoid using if pregnant or nursing
 
References:
Essential oil safety ( Tisserand and young ) second Edition 
Charles Fetrow & Julian Avila (2000) The Complete Guide to Herbal Medicine
https://www.foodchemicalscodex.org/
Lawrence BM, Essential oils from Agriculture to Chemistry
The Complete Guide to Aromatherapy, Salvatore Battaglia
Arcatender Perfume and flavor materials of natural origin