What it is
Eucalyptus globulus leaf oil is a volatile essential oil rich in eucalyptol (1,8-cineole) that gives a fresh, camphoraceous, herbal aroma. In sunscreens and skincare it is used to provide a clean botanical scent or to mask base odors. Its role in cosmetic formulas is aromatic rather than protective.
Safety & warnings
As a fragrant essential oil, eucalyptus globulus leaf oil contains volatile terpenes that can cause irritation or allergic contact dermatitis in some people, particularly on sensitive or compromised skin, and the aroma may be too strong for some users. Those prone to fragrance or essential-oil reactions may prefer fragrance-free formulas.
Origin & sourcing
It is a natural essential oil obtained by steam distillation of the leaves of the eucalyptus tree (Eucalyptus globulus).
Questions everyone asks
Why is eucalyptus oil in my sunscreen?
It is included mainly as a natural fragrance to give the product a fresh, herbal scent or to cover the smell of other ingredients. It does not contribute to sun protection.
Can eucalyptus oil irritate skin?
It can. As a fragrant essential oil with volatile terpenes, it may cause irritation or allergic reactions in sensitive individuals, who may prefer fragrance-free products.