August 2005 in “Microscopy and Microanalysis” Polymethylene wax in hair relaxers makes hair smooth and shiny with less damage.
81 citations
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December 2007 in “Acta materialia” AFM helped show how hair changes under tension and the effects of damage and conditioner.
9 citations
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April 2019 in “Journal of structural biology” Hair's internal fibers are arranged in a pattern that doesn't let much water in, and treatments like oils and heat change how much water hair can absorb.
24 citations
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November 2015 in “Scientific reports” Human hair has a new region with ordered filaments and the cuticle contains β-keratin sheets.
3 citations
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January 2015 in “Mathematical problems in engineering” Hair damage increases significantly with higher temperatures and longer heating times.