Aromatherapy fails to improve immune system

One of the most comprehensive investigations done on aromatherapy failed to show improvement in immune status, wound healing or pain control among people exposed to two scents – lemon and lavender, say US researchers.

The study was conducted using 56 healthy men and women who were exposed to a purported relaxant (lavender), a stimulant (lemon), and an odourless control (water).

Norepinephrine levels remained elevated in patients exposed to a stress-inducing odour, even if they had been exposed to the lemon or lavender smells, results showed.

‘We failed to find any quantitative indication that these oils provide any physiological effect for people in general,’ authors wrote.

Psychoneuroendocrinology (2008) 33: 328-339

Have your say

You must sign in to make a comment.

Online training units, written and reviewed by experts. Earn two hours' CPD and a personalised certificate for your portfolio.

Subscribers get five FREE learning units and non-subscribers can access each learning unit for £10 + VAT.

Click here to find out more