Riboflavin-Sensitized Photo-Acceleration of Food-Grade Pigment Formation: Kinetic Insights, Mechanistic Analysis, and Application in Rapid Hair Coloration

    January 2026 in “ SSRN Electronic Journal ”
    Yating Sun, Yan Kong, Dejian Huang, Changyan JIN, Luyao Li, Juan Wei, Linzhi Jing, Caili Fu
    TLDR Riboflavin with blue light speeds up hair dyeing, making it faster, safer, and long-lasting with less hair damage.
    The study explores the use of riboflavin under blue-light irradiation to accelerate the formation of food-grade pigments for hair coloration. The process reduces reaction time by about 80% and results in pigments that provide commercial-level pigmentation with enhanced gloss, reduced cuticle disruption, and strong dye adhesion. The color remains vibrant even after 10 and 20 washes, showing no significant fading. This method offers a faster and potentially safer alternative to traditional hair-coloration techniques, maintaining color strength and durability while minimizing damage to hair cuticles.
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