February 2025 in “International Journal of Cosmetic Science” This research studied European human hair, finding that cysteic acid and protein carbonylation increased with both chemical and photochemical oxidation. Protein carbonylation was highlighted as a more sensitive marker for photochemical oxidation, providing better in situ visualization of hair damage than cysteic acid.
3 citations
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January 2005 in “Photochemistry and Photobiology” This study found that overexpression of PKCɛ in mouse epidermis increased sensitivity to metastatic squamous cell carcinoma, suggesting that a PKCɛ-mediated microenvironment may promote cancer development through specific cytokines like TNFα.
February 2022 in “Journal of Cosmetic Dermatology” This study found that pre-treating hair with argan oil reduced protein loss and provided protection against oxidative damage, supported by both ATR spectrum analysis and protein measurements.
3 citations
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January 2021 in “ScienceAsia” In this study, combined treatment with transglutaminase and keratin significantly repaired damaged hair by improving its structural properties, reducing swelling, and enhancing crosslink activities, as evidenced by microscopy and spectroscopy analyses.
19 citations
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April 2021 in “Journal of Cosmetic Dermatology” This study found that a hair care treatment using integral silk proteins and linseed-derived polysaccharides effectively protected and repaired bleached and colored hair swatches, significantly improving their resistance, luster, and reducing structural damage after chemical treatments.
