29 citations
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August 2005 in “Biopolymers” In this study, researchers found that L-cysteine interacted electrostatically with anionic ions on the surface of keratin fibers in human hair, reducing the rate of disulfide bond disconnection at pH 9.0.
September 2018 in “Journal of Society of Cosmetic Chemists of Japan” This study found that applying a solution containing oil-soluble vitamin C to damaged hair improved hair cuticle condition and water repellency, suggesting a new cosmetic function beyond its known skin whitening effects.
May 2026 in “International Journal of Cosmetic Science” In this study, researchers observed that using an Avena strigosa seed extract on chemically damaged hair significantly improved hair properties, including strength, gloss, and surface quality, by reinforcing keratin bonding and sealing cuticle damage.
February 2022 in “Fibers” This study found that a sucrose-based crosslinker can effectively straighten hair and maintain durability in high humidity and through repeated washings without affecting the hair's tensile properties or causing surface damage.
15 citations
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January 2016 in “Przeglad Menopauzalny” This review discusses the role of diet in managing hair loss during menopause and reports no new clinical results; it highlights the importance of nutrients like sulfur amino acids, vitamins, and minerals.
