GET TO KNOW YOUR OILS
Cedar Leaf (Thuja) Austria
Thuja occidentalis L.
Chemotype: alpha-pinene / carene type
- PLANT PART
- leaves and twigs
- EXTRACTION
- steam distillation
- AROMA NOTE
- top
LEARN AS YOU COMPARE
What’s inside this oil?
Constituents are the natural chemicals that give an oil its character. See the main ones, learn what they do, and explore differences between batches.
Meet the main constituents, then select one to see what makes it interesting.
FOLLOW YOUR SENSES
Aroma & character
A closer look at this oil's scent, strength, and staying power.
- Aroma intensity
- 80 / 100
- Note layer
- top
If you like this scent, explore
A LITTLE CARE GOES A LONG WAY
Using it thoughtfully
Read the full safety context before bringing this oil into your routine.
- Cited dermal maximum · leave-on
- 0.4%
- Phototoxicity
- Not flagged in this profile
- Oxidation risk
- medium
A cited maximum is a limit, not a suggested dilution. Missing restrictions do not establish safety.
No furocoumarin-driven phototoxic restriction was identified for cedar leaf / thuja oil. The main concern is thujone-related toxicity rather than UV reactivity.
Contraindications & cautions
- majorPublic cedar leaf thuja supplier safety text warns the oil is listed as abortifacient and should not be used during pregnancy.
Explore measured chemistry from supplier batches
A supplier report describes a particular sample. Open this workspace to investigate measured constituents and their original documents.
THE SCIENCE BEHIND THE SCENT
Inside the oil
An oil's character comes from its natural chemical composition. Explore each constituent to understand the connections.
About this composition
Austria-origin commercial metadata was available publicly for this material, but public Austria-specific GC data was not. The quantitative profile here is therefore anchored to directly read public Thuja occidentalis leaf-oil GC-MS literature and used as a best-available Thuja leaf composition reference rather than a claimed Austria-lot assay.
| Constituent | Typical amount | Reported range | Chemical family | Source |
|---|---|---|---|---|
| alpha-pinene | 54.78% | 54.78–54.78% | monoterpene hydrocarbon | View sourceEvaluation of the chemical composition of essential oil of Thuja occidentalis leaves grown in Peshawar, Pakistan by gas chromatography mass spectrometry https://applications.emro.who.int/imemrf/Pak_J_Pharm_Sci/Pak_J_Pharm_Sci_2016_29_6_2105_2107.pdf (abstract/results: alpha-pinene 54.78%) |
| (+)-4-carene | 11.28% | 11.28–11.28% | monoterpene hydrocarbon | View sourceEvaluation of the chemical composition of essential oil of Thuja occidentalis leaves grown in Peshawar, Pakistan by gas chromatography mass spectrometry https://applications.emro.who.int/imemrf/Pak_J_Pharm_Sci/Pak_J_Pharm_Sci_2016_29_6_2105_2107.pdf (abstract/results: (+)-4-carene 11.28%) |
| alpha-cedrol | 6.87% | 6.87–6.87% | sesquiterpene alcohol | View sourceEvaluation of the chemical composition of essential oil of Thuja occidentalis leaves grown in Peshawar, Pakistan by gas chromatography mass spectrometry https://applications.emro.who.int/imemrf/Pak_J_Pharm_Sci/Pak_J_Pharm_Sci_2016_29_6_2105_2107.pdf (abstract/results: alpha-cedrol 6.87%) |
| terpinolene | 5.88% | 5.88–5.88% | monoterpene hydrocarbon | View sourceEvaluation of the chemical composition of essential oil of Thuja occidentalis leaves grown in Peshawar, Pakistan by gas chromatography mass spectrometry https://applications.emro.who.int/imemrf/Pak_J_Pharm_Sci/Pak_J_Pharm_Sci_2016_29_6_2105_2107.pdf (abstract/results: terpinolene 5.88%) |
Profile source: Liberty Natural Cedar Leaf (Thuja) Austria; The Good Scents Company thuja occidentalis leaf oil page; Evaluation of the chemical composition of essential oil of Thuja occidentalis leaves grown in Peshawar, Pakistan by gas chromatography mass spectrometry; The Maximum Dilution for 400 Essential Oils · https://www.libertynatural.com/bulk/577.htm ; https://www.thegoodscentscompany.com/data/es1002891.html ; https://applications.emro.who.int/imemrf/Pak_J_Pharm_Sci/Pak_J_Pharm_Sci_2016_29_6_2105_2107.pdf ; https://www.theresaneoforthat.com/maximum-dilution-for-400-essential-oils/
A TRADITION OF BOTANICAL CURIOSITY
Traditional & reported uses
These uses reflect the profile's reported traditions and literature. They are not established treatment recommendations.
- traditionally used in folk herbal traditions for respiratory and topical comfort, applied cautiously in low dilution
- used in perfumery for a fresh, resinous, camphoraceous coniferous note
- reported use in cleaning-inspired diffuser blends for a fresh, forest-like atmosphere
- traditionally associated with Northern European and North American folk plant-use traditions
- reported use in small amounts within woody-green fragrance accords
For aromatherapy and wellness use only — not medical advice. Effect statements are traditional/reported associations, not treatment claims. The Synergy Rating scores blend craft, harmony and safety, not medical efficacy. Read the safety framework.
What we're still learning · 2 data gaps
Good decisions start with knowing what is — and isn't — in the evidence.
- Odor intensity 80 is a normalization of public categorical aroma-strength language ('strong' / 'sharp'), not a native instrumented 0-100 measurement.
- No public Austria-lot GC profile was verified in this pass; constituent percentages are a directly read Thuja occidentalis leaf-oil literature reference, not a country-specific batch assay.