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Assessment of hair surface roughness using quantitative image analysis
Background/Purpose:
Focus on the hair and hair cuticle is increasing. The hair cuticle is the first layer to be exposed to damage and the area of primary protection. For such reasons, hair product manufacturers consider cuticle protection important. However, previous studies used only visual assessment to examine the cuticle. This study aimed to obtain the changes in cuticles and measure hair roughness using a HIROX microscope.
Methods:
A total of 23 female subjects used the same products daily for 4 weeks. Three hair samples per subject were collected from three different areas of the head. Measurements were taken before and after 4 weeks of daily product use.
Results:
The hair surface changes were clearly observed on the captured images. Moreover, hair surface roughness was observed using various parameters on HIROX software. After 4 weeks of daily product use, the roughness parameter value of the hair surface was significantly decreased.
Conclusion:
Our result suggests that the hair roughness analytical method using HIROX can be a new paradigm for high-quality quantitative analysis of the hair cuticle.
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