Cineole has a Natural Origin Index (NOI) of 1.00 (scale 0–1) per ISO 16128. Isolated by distillation from eucalyptus oil, or made from pine-derived alpha-terpineol, so all carbon is terpene (natural) feedstock. An NOI of 1.00 means 100% of its molecular mass is traceable to a natural, renewable source.

Is Cineole natural? NOI 1.00 — Is That Natural?

How we scored it

C10H18O 154.3; all ten carbons come from eucalyptus oil or pine terpenes (b): 154.3/154.3 = 1.00.

What counts. ISO 16128-2 scores the atoms that remain in the final ingredient. Reagents, solvents, catalysts and protecting groups used during manufacture leave no mass behind and are not counted.

Where it comes from

Dominant supply is fractional distillation of eucalyptus oil. Synthetic cineole made from turpentine-derived terpineol is also natural origin under b.

In plain English

Also called eucalyptol, this is the main aroma compound of eucalyptus oil, with a fresh camphor-like smell. It is used as a skin-protecting and scenting ingredient, obtained from eucalyptus oil or made from pine-derived terpineol.

Structure

1,3,3-trimethyl-2-oxabicyclo[2.2.2]octane

PubChem CID 2758 ↗

References

1ISO 16128-1:2016 and ISO 16128-2:2017 — Guidelines on technical definitions and criteria for natural and organic cosmetic ingredients and products. ISO, Geneva.
2Cineole. PubChem CID 2758. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
3CINEOLE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
4CINEOLE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=CINEOLE