36 citations,
August 2011 in “Journal of dermatological science” Human hair has a protective lipid layer that can be damaged by moisture and treatments, affecting hair growth and health.
30 citations,
November 2005 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” The lipid in human hair follicles acts as a barrier, similar to the skin's lipid layer.
12 citations,
February 2019 in “Skin research and technology” White hair has less lipid content and absorbs water differently than brown hair.
7 citations,
April 2018 in “Cosmetics” Lipids in Japanese hair help maintain glossiness and structure.
2 citations,
March 2017 in “Veterinary dermatology” Herbal paste and oil extract might improve dog hair quality by retaining lipids.