24 citations
,
April 2016 in “Experimental Dermatology” Chemical treatments like dyeing, perming, and bleaching damage hair by altering amino acids and lipids.
49 citations
,
April 2010 in “International Journal of Cosmetic Science” Hair ages as the cuticle wears down, especially beyond 1 meter from the root, affecting its strength and shine.
43 citations
,
July 2005 in “Journal of Chromatography B” A new method accurately measures hair lipids, revealing individual differences.
41 citations
,
May 2005 in “International Journal of Cosmetic Science” Human hair contains various lipids that vary among individuals and help protect the hair.
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.