History:
Tea tree oil was first extracted from Melaleuca alternifolia in Australia, and this species remains the most important commercially. In the 1970s and 1980s, commercial plantations began to produce large quantities of tea tree oil from Melaleuca alternifolia. Many of these plantations are located in New South Wales. Since the 1970s and 80s, the industry has expanded to include several other species for their extracted oil: Melaleuca armillaris and Melaleuca styphelioides in Tunisia and Egypt; 
The Melaleuca alternifolia tree received the name Tea Tree from eighteenth-century sailors, who made teas that smelled like nutmeg from the leaves of the (Tea) tree.
 
 
Details:
Botanical Name : Melaleuca alternifolia
Family : Myrtaceae
Country of Origin : Australia 
Extraction Method : Steam distilled 
Plant Part Used : Leaves 
Note : Mid to Top note  
Aroma : Spicy , Warm , Herbal , Minty 
Color : Pale yellow 
Blends well With : th characteristic woody, camphoraceous notes.Blends With: Cinnamon Bark, Clary Sage, Clove Bud, Geranium, Lavender, Lemon, Myrrh, Nutmeg, Rosewood, Rosemary and Thyme. 
Shelf Life : 4 – 5 Years 
Safety 
Possible skin sensitizer
Old or oxidized oil should be avoided
 A maximum dermal use level of 15% is recommended
A patch test should be performed before use for those with sensitive skin.
For topical application don’t use directly on skin, dilute with a carrier oil 
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