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Keywords:

  • Aroma;
  • Aromatherapy;
  • Blood-brain barrier;
  • Central nervous system;
  • Cortex;
  • Efficacy of fragrances;
  • Essential oil;
  • Fragrance compounds;
  • Inhalation;
  • Medicament;
  • Pharmacological effects;
  • Physiological effects;
  • Phytotherapy;
  • Reflectoric effects;
  • Volatility

Abstract

The definition of aromatherapy as well as the aromatherapeutical uses of fragrance compounds and essential oils are discussed. Various methods—mainly physiological—to investigate the efficacy of fragrances are shown.