30 citations
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July 2000 in “PubMed” Hair has unevenly distributed proteins and lipids, with lipids mainly in the cuticle and proteins in the cortex and medulla.
7 citations
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March 2019 in “Journal of cosmetic dermatology” African hair has the most lipids, while Caucasian hair is more hydrated and stronger.
15 citations
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August 2020 in “Analytical chemistry” Hair lipids do not protect against humidity.
7 citations
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April 2018 in “Cosmetics” Lipids in Japanese hair help maintain glossiness and structure.
2 citations
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July 2023 in “Cosmetics” Surfactants in shampoos and conditioners remove some but not all lipids from hair, and more research is needed to understand their full impact.