19 citations,
May 2008 in “Applied spectroscopy” Human hair has different protein structures in its cuticle and cortex.
42 citations,
January 2005 in “Applied spectroscopy” Hair from breast cancer patients shows changes in structure and composition, and a test using these changes detected cancer but also falsely identified some healthy samples as cancerous.
20 citations,
September 1978 in “International Journal of Dermatology” Hair growth is influenced by factors like genetics and nutrition, and more research is needed to understand hair loss and growth mechanisms.