Influence of concentration of fragrances on salivary α-amylase

M. Yamaguchi, Y. Tahara, S. Kosaka

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Synopsis The objective is to reveal the influence of the concentration of fragrances on salivary biomarkers, which reflect the human stress system, in 15 female young healthy adults. Lavandula officinalis and Citrus aurantium were used as the test samples. Salivary biomarkers such as α-amylase activity (AMY), cortisol (CORT) and dehydroepiandrosterone (DHEA) were measured during baseline, inhalation and post-inhalation periods. Our results indicated that (i) a significant difference was not observed for the control and the 3 wt% test samples, however, the AMY was decreased by inhalation of the 1 wt% test samples (P < 0.05); (ii) AMY levels changed more significantly than did the hormone levels; (iii) a tendency of negative correlation was not observed between DHEA and CORT. It was considered that the time-course change of AMY might be a useful index of the inhalation of fragrances, which reflects the acute psychosomatic reactivity of humans.

Original languageEnglish
Pages (from-to)391-395
Number of pages5
JournalInternational Journal of Cosmetic Science
Issue number5
Publication statusPublished - Oct 2009
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry (miscellaneous)
  • Ageing
  • Pharmaceutical Science
  • Drug Discovery
  • Dermatology
  • Colloid and Surface Chemistry


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