66 citations
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September 2005 in “Photochemical & photobiological sciences” We don't fully understand how sunlight damages different types of hair.
7 citations
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January 2001 in “Comprehensive series in photosciences” UV radiation significantly damages hair, especially with humidity, making it more vulnerable to further damage.
27 citations
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January 1995 Melanin in black hair protects it from sun damage better than light-brown hair.
24 citations
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January 2009 in “International Journal of Trichology” Sunlight exposure ages hair, making it brittle, stiff, and dry.
July 2025 in “Highlights in Science Engineering and Technology” Nanomaterials improve plastic surgery results but face safety and cost challenges.