Recovery and Protection of Photo-Damaged Hair With Keratin-Encapsulated Cationic Liposomes

June 2025 in “ International Journal of Cosmetic Science ”

H.D. Bui, Su Ji Kim, Jihui Jang, Jun Bae Lee, Hyuk Sang Yoo

keratin-encapsulated cationic liposomes UV-induced damage keratin protein degradation lipid peroxidation cationic liposomes KLs UV damage photo-damaged hair

Studysummary In this study, researchers developed cationic liposomes encapsulated with keratin to improve the recovery of UV-damaged hair, finding that these liposomes significantly improved keratin penetration and reduced protein denaturation and lipid peroxidation, resulting in smoother hair surfaces compared to keratin solution alone. Our plain-language summary of this paper — not a Tressless recommendation.

The study explores the effectiveness of keratin-encapsulated cationic liposomes (KLs) in repairing and protecting hair from UV-induced damage. UV radiation can cause significant harm to hair, leading to dryness, brittleness, and color fading. KLs, developed through high-pressure homogenization, enhance keratin penetration and adherence to hair fibers, effectively restoring photo-damaged hair by reducing protein degradation and lipid peroxidation. The cationic nature of KLs allows for deeper penetration and longer-lasting effects compared to conventional treatments, making them a promising option for leave-on hair care products targeting photo-damaged hair.

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Recovery and Protection of Photo-Damaged Hair With Keratin-Encapsulated Cationic Liposomes

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