45 citations
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February 2002 in “International Journal of Cosmetic Science” This study found that a ceramide derived from sphinganine can bind to African–American hair, reducing breakage when applied in a shampoo after relaxing treatments.
3 citations
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July 2019 in “Journal of Cosmetic Dermatology” This study found that a shampoo with a selective TAAR agonist reduced hair shedding during brushing by 31% in women and contracted the arrector pili muscle.
November 2017 in “Koubunshi rombunshuu/Kōbunshi ronbunshū” In this study, treatments using a shampoo and conditioner with hematin helped repair damaged hair by depositing a cuticle-like structure, straightening hair as observed through electron microscopy.
2 citations
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July 2021 in “Actas dermo-sifiliográficas/Actas dermo-sifiliográficas” This review discusses hair shaft disorders, noting the lack of specific treatments and recommending general care practices to prevent hair damage, with some improvement possible during puberty or with treatments like minoxidil.
16 citations
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December 2016 in “Skin appendage disorders” This study analyzed patch test results to identify allergens causing scalp contact dermatitis, finding nickel, cobalt, and balsam of Peru among the most common in the patient population.