After measurement of individual growth rates, natural hair fibers from Asian and Caucasian subjects were analyzed using Scanning Electron Microscopy. In total, more than 1000 hairs were analyzed. Measurements of diameter, medulla and inter-scale distance (average distance between two successive cuticle scales) show these parameters strongly correlated with hair growth rate. A thicker hair fiber, corresponds to a faster growth rate, a shorter inter-scale distance and greater probability to have a medulla; and vice versa, a thin hair fiber shows slower growth rate, a larger inter-scale distance and a lower ...
Relationships Between Hair Growth Rate and Morphological Parameters of Human Straight Hair: A Same Law Above Ethnical Origins? is a post from: Skincare
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