Measurement of Stress Relief during Scented Cosmetic Product Application Using a Mood Questionnaire, Stress Hormone Levels and Brain Activation

News Date
September 14, 2022

In order to evaluate relaxation feeling or stress relief induced by inhalation of an olfactory ingredient of a cosmetic product, 25 healthy females were tested upon by recording their responses to an emotion questionnaire, then by analysing their saliva samples to know the concentration of the hormones cortisol and α-amylase. Mobile EEG measurement for quantification of the alpha brain waves before and after stress induction were also recorded. It was found that the sample with the ingredient produced significant stress relief, lowering negative emotions and cortisol levels and thus showing significant increase in alpha activity compared to placebo application.

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