Water and fatty acids affect hair's surface differently based on hair damage, and models can help understand hair-cosmetic interactions.
25 citations
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November 2012 in “Thermochimica Acta” Internal lipids in keratin fibers, like wool and hair, reduce water absorption and release.
June 2024 in “ChemBioChem” Replenishing free 18-MEA can help restore damaged hair surfaces.
21 citations
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March 2017 in “Skin research and technology” Removing external lipids from hair reduces moisture and increases strength, while removing internal lipids decreases water permeability.
September 2025 in “Cosmetics” Lipid content and structure affect water absorption in different hair types.