Eucalyptus Globulus Oil

What it is

Eucalyptus globulus oil is steam-distilled from the leaves of the blue gum tree and is typically 70 to 85% 1,8-cineole, also called eucalyptol. It is best known from decongestant rubs and inhalations. In face masks it appears at low levels for a fresh medicinal scent and a mild antimicrobial claim.

What it does well

• Antibacterial activity in laboratory testing

  1,8-cineole inhibits several bacteria in vitro. The concentrations used in cosmetics are well below what those studies employ, so this should not be treated as an acne treatment.

  Limited evidence

Worth knowing

• Genuinely dangerous if swallowed, particularly by children

  Eucalyptus oil is a well-documented cause of accidental poisoning in young children even in small quantities. This is a storage and household-safety point rather than a risk from a face mask, but it is a real one.

  Matters most toHouseholds with young children who might access neat essential oil bottles.

• Can irritate sensitive skin and sting near the eyes

  1,8-cineole is a mild irritant and its vapour is uncomfortable around the eyes. Face masks containing it are best kept away from the eye area.

  Matters most toPeople with sensitive skin or those applying masks close to the eyes.

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