Studies on the Split Ends Formation of Hair by Brushing

    January 1995 in “ Nihon Keshouhin Gijutsushakaishi/Journal of S C C./Nihon Keshouhin Gijutsushakai kaishi ”
    Michiko Arai, Kouji Morita, Kazuyuki Yahagi, Sachio Naito
    TLDR Ethyl Carbitol is the best at preventing split ends in permed hair.
    The study investigated the effects of cosmetic treatments on split ends formation using an auto-brushing machine to simulate actual hair care processes. It concluded that structural changes in the amorphous matrix proteins of hair fibers were a key factor in split ends formation. Among the treatments tested, diethylene glycol monoethylether (Ethyl Carbitol; EC) was found to be the most effective in inhibiting split ends in permed hair, making it behave similarly to untreated normal hair in terms of split ends generation.
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