2 citations
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September 2008 in “International Journal of Cosmetic Science” This study found that brushing hair increases the ratio of long-to-short segment breaks compared to combing, with factors like bleaching and wet combing contributing to more long segment breaks.
March 2009 in “CRC Press eBooks” This paper reviews how hair conditioners work, primarily by reducing combing forces through lubrication, and reports no new clinical findings.
2 citations
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January 1995 in “Nihon Keshouhin Gijutsushakaishi/Journal of S C C./Nihon Keshouhin Gijutsushakai kaishi” This study found that treating permed hair with diethylene glycol monoethylether significantly reduced the formation of split ends, making it similar to untreated normal hair in terms of split ends generation.
April 2025 in “Brazilian Journal of Hair Health” This report from Tangle Teezer and TRI Princeton indicates that their Extra Gentle brush reduces hair breakage by up to 39%, offering a therapeutic experience for users with fragile scalps.
4 citations
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March 2021 in “Journal of Surfactants and Detergents” This study found that hair treated with shampoo containing water-soluble silicone demonstrated smoother sliding and better detangling, compared to shampoo with water-insoluble silicone, due to differences in conditioning film formation.