21 citations,
March 2017 in “Skin research and technology” Removing external lipids from hair reduces moisture and increases strength, while removing internal lipids decreases water permeability.
41 citations,
May 2005 in “International Journal of Cosmetic Science” Human hair contains various lipids that vary among individuals and help protect the hair.
15 citations,
August 2020 in “Analytical chemistry” Hair lipids do not protect against humidity.
12 citations,
February 2006 in “Lipids” Hair texture changes with age due to varying levels of lipids.
7 citations,
March 2019 in “Journal of cosmetic dermatology” African hair has the most lipids, while Caucasian hair is more hydrated and stronger.