42 citations
,
January 2011 in “Journal of Biomedical Optics” Infrared and Raman imaging can non-destructively analyze hair structure and help diagnose hair conditions.
13 citations
,
March 2020 in “Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy” Alopecic hair has more irregular structures and chemical changes than normal hair, reducing its strength.
4 citations
,
August 2016 in “PubMed” Repeated dyeing and shampooing cause hair color loss and damage.
36 citations
,
October 2014 in “Langmuir” Bleaching hair removes its protective top layer and exposes more hydrophilic groups, changing its chemical surface and affecting how it interacts with products.
6 citations
,
September 2018 in “ACS applied bio materials” Calcium fatty acid deposits found in human hair can change its appearance and feel.