Verbal and Galvanic Skin Responses to the Presentation of Crimean Essential Oils

This study investigates consumer preferences for Crimean essential oils using verbal assessments and biometric data from galvanic skin response (GSR). The research focuses on eight essential oils, including narrow-leaved lavender (Lavandula angustifolia Mill.), hyssop (Hyssopus officinalis L.), common sage (Salvia officinalis L.), Tauric wormwood (Artemisia taurica Willd.), clary sage (Salvia sclarea L.), rose (Rosa L.), coriander (Coriandrum sativum L.), and neutral jojoba oil (Simmondsia chinensis). The goal is to explore how neurophysiological methods can enhance the understanding of consumer reactions to aromas, which can inform market predictions for these products. Verbal assessments revealed that rose was the most positively perceived aroma across gender groups, while clary sage received the lowest ratings. These differences may stem from variations in the chemical composition and perception speed of the oils. Factor analysis identified two main groups of essential oils based on their chemical properties: (1) alcohols and esters (e.g., rose, lavender, coriander) and (2) ketones and phenols (e.g., hyssop, Tauric wormwood). Alcohols and esters are associated with fresh, floral, and fruity scents, while ketones and phenols have antimicrobial and anti-inflammatory properties but may pose toxicity risks at high concentrations. Biometric experiments using GSR showed that hyssop elicited the strongest emotional reactions, while clary sage produced the weakest responses. Significant differences in GSR amplitudes were observed (p<0.001), with hyssop’s complex scent likely contributing to its pronounced emotional impact. In contrast, lavender, a familiar and widely recognized aroma, was associated with positive emotions, consistent with its use in neuromarketing research. Gender-based analysis revealed significant differences in aroma perception, except for the latent period of GSR, which was similar across genders. The longest latent period was observed for lavender, likely due to its relaxing therapeutic effects. The findings highlight the potential of combining verbal and biometric data to predict consumer preferences and market success for essential oils. This approach provides valuable insights into the emotional and physiological responses elicited by different aromas, offering a scientific basis for product development and marketing strategies in the cosmetics and aromatherapy industries.