41 citations
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May 2005 in “International Journal of Cosmetic Science” This study observed that in Japanese females, hair lipid composition showed significant correlations, suggesting CH and CERs may act as a barrier against sebum-derived lipids.
8 citations
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February 2022 in “International Journal of Dermatology” This review discusses the lipid composition of human hair across ethnic types, effects of damage on lipid content, and associated changes with diseases, but reports no new findings; further research is needed.
7 citations
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February 1962 in “Experimental Biology and Medicine” This study observed that male and female epidermis differ significantly in total lipid and phospholipid levels during different stages of the hair growth cycle.
6 citations
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November 1960 in “Experimental Biology and Medicine” In this study, despite morphological differences in the hair growth cycle stages, the lipid composition of the epidermis and dermis showed no significant variation, though water content and cholesterol levels differed between these skin layers.
98 citations
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December 2015 in “The Journal of Cell Biology” In this study, researchers found that the absence of type I or type II keratins in mice leads to severe skin barrier defects, highlighting keratins' crucial role in epidermal structure and function.