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Eucalyptus oil

Eucalyptus oil suppliers and sourcing guide

Eucalyptus oil is steam-distilled from the leaves of eucalyptus trees, mainly Eucalyptus globulus, with China, Spain, Portugal and Australia as key producers. Crude oil is rectified to raise 1,8-cineole (eucalyptol) content and remove harsh components, and is sold by cineole grade. It is used in cough drops, oral care, cosmetics and household products, and at low levels in food flavors. Lemon-scented eucalyptus (Corymbia citriodora) oil is a different, citronellal-rich product.

See suppliersWhat to ask for on the COA
Also known as
Eucalyptus globulus oil · Eucalyptus globulus leaf oil · Cineole oil · CAS 8000-48-4
Facts checked
November 2026

Forms and grades of eucalyptus oil

Suppliers sell different products under the same name. Specify the one you need.

  • Rectified, 70 to 75 percent cineole

    A common commercial grade for oral care and general use.

  • Rectified, 80 to 85 percent cineole

    Higher-cineole grade for lozenges and pharmaceutical-type products.

  • Crude

    Once-distilled oil with lower cineole and stronger off-notes, used in technical applications.

  • Organic

    Certified organic eucalyptus oil, in limited supply.

What to check on the COA

Compare each result with your own specification when the lot arrives.

GC profile
Gas chromatography of 1,8-cineole, alpha-pinene, limonene, p-cymene and aldehydes, against the specification for the stated grade.
Physical constants
Specific gravity, refractive index and optical rotation at a stated temperature, compared with the supplier's specification or the Food Chemicals Codex monograph where one exists.
1,8-Cineole assay
Cineole content by GC (or by the classic o-cresol freezing-point method), which defines the grade.
Appearance and odor
Color, clarity and odor against a retained standard; off-notes often show up before the GC profile shifts.
Heavy metals
Lead and arsenic, typically by ICP-MS, against the supplier's specification.

Storage, lots and expiry

Storage and shelf life

Keep the oil in full, tightly closed amber glass, aluminum or lined steel containers, cool and out of light; headspace air oxidizes terpenes and dulls the odor. Blanket partly used drums with nitrogen where possible. Shelf life is set by the supplier's specification, and older stock is usually retested for odor, peroxide value and GC profile before use.

Lots and expiry dates

Cineole content and minor components vary with species, origin and rectification. Record species, grade and cineole result per lot, and confirm the botanical source when a supplier offers several eucalyptus oils.

Regulatory status

Facts from regulators and standards bodies, each linked to its source.

  • 21 CFR 172.510 lists Eucalyptus globulus leaves among natural flavoring substances and natural adjuvants that may be safely used in food in the minimum quantity required.

    Source: ecfr.gov (opens in a new tab)

  • FDA's Substances Added to Food inventory lists eucalyptus oil (Eucalyptus globulus, CAS 8000-48-4) with the technical effect flavoring agent or adjuvant, citing 21 CFR 172.510.

    Source: hfpappexternal.fda.gov (opens in a new tab)

  • Health Canada's Cosmetic Ingredient Hotlist restricts eucalyptus oil: cosmetics in non-solid forms with more than 0.022% must carry warnings including "Keep out of reach of children".

    Source: canada.ca (opens in a new tab)

  • 21 CFR 341.40(u) permits an OTC combination of camphor, menthol and eucalyptus oil (1.2 to 1.3 percent) only in a suitable ointment vehicle.

    Source: ecfr.gov (opens in a new tab)

This is general information, not regulatory advice. Status differs by country and by how the ingredient is used, so check the rules for your product and market.

Eucalyptus oil suppliers

Manufacturers and distributors whose own websites say they sell it.

We are checking eucalyptus oil suppliers now

Every listing is checked against the supplier’s own website before it goes live, so this list fills in over the coming weeks. The specs and COA checklist above are ready today.

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Frequently asked questions

What forms of eucalyptus oil can brands buy?

Common forms include rectified, 70 to 75 percent cineole, rectified, 80 to 85 percent cineole, crude and organic. Ask each supplier for the specification sheet of the exact grade they quote.

What should the COA for eucalyptus oil include?

Expect gC profile, physical constants, 1,8-Cineole assay, appearance and odor and heavy metals, each with its method, specification and result for that lot.

How should eucalyptus oil be stored?

Keep the oil in full, tightly closed amber glass, aluminum or lined steel containers, cool and out of light; headspace air oxidizes terpenes and dulls the odor. Blanket partly used drums with nitrogen where possible. Shelf life is set by the supplier's specification, and older stock is usually retested for odor, peroxide value and GC profile before use.

What is the regulatory status of eucalyptus oil?

21 CFR 172.510 lists Eucalyptus globulus leaves among natural flavoring substances and natural adjuvants that may be safely used in food in the minimum quantity required. FDA's Substances Added to Food inventory lists eucalyptus oil (Eucalyptus globulus, CAS 8000-48-4) with the technical effect flavoring agent or adjuvant, citing 21 CFR 172.510. Health Canada's Cosmetic Ingredient Hotlist restricts eucalyptus oil: cosmetics in non-solid forms with more than 0.022% must carry warnings including "Keep out of reach of children". 21 CFR 341.40(u) permits an OTC combination of camphor, menthol and eucalyptus oil (1.2 to 1.3 percent) only in a suitable ointment vehicle.

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