April 2026 in “Zenodo (CERN European Organization for Nuclear Research)” This study found that cationic surfactant-based conditioning systems significantly improve hair combability by forming a stable low-friction film on hair surfaces, reducing friction and enhancing sensory performance compared to standard systems, as confirmed by both instrumental and sensory evaluations.
April 2026 in “Zenodo (CERN European Organization for Nuclear Research)” This study found that cationic surfactant-based conditioning systems significantly reduce friction on hair fibers, improving wet and dry combability by forming a stable film layer on the hair’s surface, as verified by both instrumental and sensory evaluations.
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February 2002 in “International Journal of Dermatology” In this study, hair damaged by permanent dye showed signs of recovery over time, with near complete restoration to its original state after eight weeks.
This article reviews the roles and types of surfactants and ingredients in modern shampoos, discussing their contributions to cleansing, conditioning, and cosmetic effects, but reports no new experimental findings.
November 2025 in “Advanced Healthcare Materials” This study found that incorporating CTA2-BADG, a modified hair-rebonding compound, into damaged hair significantly improved surface morphology and tensile strength by using charge-conversion chemistry to enhance penetration into the hair shaft.