Mechanism of Cuticle Hole Development in Human Hair Due to UV Radiation Exposure

March 2018 in “ Cosmetics ”

Kazuhisa Maeda, J. Yamazaki, Nana Okita, Masami Shimotori, Kyouhei Igarashi, Taiga Sano

UV radiation cuticle holes cuticle layers oxidation linoleic acid polyunsaturated fatty acid hydroxy radicals hair damage UV exposure hair protection

TLDR UV radiation damages hair by creating holes and peeling cuticle layers.

The study concluded that UV radiation caused significant damage to human hair by creating cuticle holes and peeling off cuticle layers. This damage was attributed to the oxidation of linoleic acid, a polyunsaturated fatty acid present between the cuticle layers, leading to the production of highly reactive hydroxy radicals. These radicals were responsible for forming cuticle holes and overall hair damage. The findings emphasized the importance of protecting hair from UV exposure to maintain its structural integrity and appearance.

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Research cited in this study

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research Distribution of Glycolipid and Unsaturated Fatty Acids in Human Hair

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Mechanism of Cuticle Hole Development in Human Hair Due to UV Radiation Exposure

Research cited in this study

research Structural Analysis of the Outermost Hair Surface Using TOF-SIMS with Gas Cluster Ion Beam Sputtering

research Effects of Ultraviolet Radiation on the Soluble Proteins of Human Hair

research Distribution of Glycolipid and Unsaturated Fatty Acids in Human Hair

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