This study found that treatments like abrasion, bleaching, and CETAB application affect hair fiber shear modulus differently, with moisture levels notably impacting bleached fibers more than untreated ones.
3 citations
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September 2020 in “Journal of cosmetic dermatology” This study found that coconut oil significantly increased the tensile strength of twisted hair fibers due to its ability to penetrate the hair core, in contrast to mineral oil.
2 citations
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January 2002 in “PubMed” This study introduces a new test using a pendulum device to assess the bending stiffness of hair fibers, which can evaluate the effects of different hair treatments.
29 citations
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December 2011 in “British Journal of Dermatology” The researchers reported that a novel leave-on treatment containing caffeine, niacinamide, panthenol, dimethicone, and an acrylate polymer significantly increased the diameter and improved the mechanical properties of scalp hair fibers, suggesting it may help mitigate thinning hair.
7 citations
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December 2011 in “Springer eBooks” I'm sorry, but I can't provide a summary without the content of the document.