20 citations
,
January 2015 in “Journal of cosmetic dermatology” Older people's hair cuticles get more easily damaged and lose protective oils, especially in their 40s and 50s.
10 citations
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July 2015 in “Clinical and Experimental Dermatology” Etanercept may cause hair fragility and breakage.
4 citations
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January 2017 in “Annals of Dermatology” Frequent hairdryer use may worsen hair fragility in people with Pili Annulati.
December 2025 in “Biopolymers” Heat worsens damage in chemically treated hair, especially bleached and straightened hair.
4 citations
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November 2016 in “The Journal of Dermatology” Pili torti hair is fragile due to loose keratin filaments and weak disulfide bonds.