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Development of a validated questionnaire for the assessment of sleep quality based on a cosmetics line

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Description

The aim of this project was to develop a care product that demonstrably improves the quality of life. This forms the basis for a new innovative product group in the personal care sector. In use, the pilot product's formulation, texture and novel combination of active ingredients (neurofragrance) demonstrated a provable holistic additional effect on sleep quality that went beyond the basic benefit for the skin. The development of a novel scientific test methodology was the prerequisite for demonstrating and statistically proving the desired effect.

The experimental design in this project was based on a questionnaire to be validated (self-evaluation), biophysical approaches (measurement of bodily functions and their changes, in this case the recording of heart rate variability, HRV for short) and biometric statistical evaluation (pattern recognition through significant correlation and cluster analyses).