GET TO KNOW YOUR OILS
Eucalyptus (Eucalyptus globulus)
Eucalyptus globulus
Chemotype: 1,8-cineole (eucalyptol) chemotype
- PLANT PART
- fresh 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
- 75 / 100
- Note layer
- top
- Approximate tenacity
- 2–6 hours
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
- 20%
- 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.
Not phototoxic; no furocoumarins were identified in the reviewed public sources. High 1,8-cineole content is the main safety driver, and the public CIR assessment cites a 20% maximum dermal use level.
Contraindications & cautions
- major1,8-cineole-rich oils must not be applied on/near the face of children under 10 (risk of CST-type respiratory depression/apnoea). Oral ingestion hazardous, esp. children.
- moderateOral toxicity: as little as a few mL of eucalyptus oil can cause CNS depression, especially in children.
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
Typical values from GC-MS of E. globulus crude leaf EO (29 compounds, 99.84% identified). 1,8-cineole is the dominant constituent; literature spans ~48-86% depending on tree age/origin (pharmacopoeial minimum for rectified oil is ~70%).
| Constituent | Typical amount | Reported range | Chemical family | Source |
|---|---|---|---|---|
| 1,8-Cineole (eucalyptol) | 62.3% | 48.2–86.1% | Oxides | View sourcePMC11597847 (crude EO 62.32%); range from multiple GC-MS studies 48.2-86.1% https://pmc.ncbi.nlm.nih.gov/articles/PMC11597847/ |
| p-Cymene | 8.1% | — | Monoterpenes | View sourcePMC11597847 (crude EO 8.11%) https://pmc.ncbi.nlm.nih.gov/articles/PMC11597847/ |
| Globulol | 5.9% | — | Sesquiterpenols | View sourcePMC11597847 (crude EO 5.9%) https://pmc.ncbi.nlm.nih.gov/articles/PMC11597847/ |
| α-Pinene | 4.2% | 4.1–16.1% | Monoterpenes | View sourcePMC11597847 (crude EO 4.15%); up to ~16% reported elsewhere https://pmc.ncbi.nlm.nih.gov/articles/PMC11597847/ |
| γ-Terpinene | 3.5% | — | Monoterpenes | View sourcePMC11597847 (crude EO 3.51%) https://pmc.ncbi.nlm.nih.gov/articles/PMC11597847/ |
| Allo-aromadendrene | 1.5% | — | Sesquiterpenes | View sourcePMC11597847 (crude EO 1.54%) https://pmc.ncbi.nlm.nih.gov/articles/PMC11597847/ |
| beta-Pinene | 0.86% | — | Monoterpenes | View sourcePMC11597847 (crude EO, beta-Pinene 0.86%) https://pmc.ncbi.nlm.nih.gov/articles/PMC11597847/ Table 1, row 3 (CEO column, beta-Pinene 0.86%) |
| beta-Myrcene | 1.51% | — | Monoterpenes | View sourcePMC11597847 (crude EO, beta-Myrcene 1.51%) https://pmc.ncbi.nlm.nih.gov/articles/PMC11597847/ Table 1, row 5 (CEO column, beta-Myrcene 1.51%) |
| endo-Fenchol (alpha-Fenchol) | 3.83% | — | Monoterpenols | View sourcePMC11597847 (crude EO, alpha-Fenchol 3.83%) https://pmc.ncbi.nlm.nih.gov/articles/PMC11597847/ Table 1, row 15 (CEO column, alpha-Fenchol 3.83%) |
| Terpinen-4-ol | 2.43% | — | Monoterpenols | View sourcePMC11597847 (crude EO, Terpinen-4-ol 2.43%) https://pmc.ncbi.nlm.nih.gov/articles/PMC11597847/ Table 1, row 13 (CEO column, Terpinen-4-ol 2.43%) |
| (E)-Caryophyllene | 0.81% | — | Sesquiterpenes | View sourcePMC11597847 (crude EO, (E)-beta-caryophyllene 0.81%) https://pmc.ncbi.nlm.nih.gov/articles/PMC11597847/ Table 1, row 22 (CEO column, (E)-beta-caryophyllene 0.81%) |
| (E)-Nerolidol | 1.78% | — | Sesquiterpenols | View sourcePMC11597847 (crude EO, beta-Nerolidol 1.78%) https://pmc.ncbi.nlm.nih.gov/articles/PMC11597847/ Table 1, row 24 (CEO column, beta-Nerolidol 1.78%) |
Profile source: Chemical Composition and Biological Activities of Eucalyptus globulus Labill.; PubMed/PMC GC-MS literature on E. globulus crude leaf EO; Perfumer & Flavorist eucalyptus distillation profile; CIR Safety Assessment of Eucalyptus globulus (Eucalyptus)-Derived Ingredients · https://pmc.ncbi.nlm.nih.gov/articles/PMC10004840/ ; https://pmc.ncbi.nlm.nih.gov/articles/PMC11597847/ ; https://img.perfumerflavorist.com/files/base/allured/all/document/2016/02/pf.PF_29_05_028_09.pdf ; https://www.cir-safety.org/sites/default/files/eucalyptus_1.pdf
What we're still learning · 2 data gaps
Good decisions start with knowing what is — and isn't — in the evidence.
- The 75 odor_intensity score is a normalization of public qualitative aroma descriptors rather than a source-native 0-100 sensory metric.
- beta-Pinene, beta-Myrcene, endo-Fenchol (alpha-Fenchol), Terpinen-4-ol, (E)-Caryophyllene, and (E)-Nerolidol rows were added from the same already-cited PMC11597847 crude-EO GC-MS table (Table 1, CEO column) to raise closure toward 0.95; they were present in the source paper but omitted from the original extraction pass.