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the claim
Ultraviolet radiation from sunlight damages hair, weakening the strands and fading their color.
the verdict
SUPPORTED
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Recorded sources
3 sources for · 0 against
Is it true that ultraviolet radiation from sunlight damages hair, weakening the strands and fading their color?
Yes. A Cleveland Clinic dermatology page states directly that ultraviolet rays dry out hair strands, weaken their structure and fade color, and a 2026 biomaterials paper describes UV radiation driving structural weakening of hair. The remaining retrieved items concern skin, eyes, frogs, parasites or prostheses and do not bear on hair.
Verdict: SUPPORTED · 3 sources for, 0 against · Last checked
Evidence for · 3
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SH, C., K, C., K, W., & TJ, C. (2025). Evaluation of methodologies and additive efficacy on maxillofacial color longevity research: A systematic review and meta-analysis.. doi.org. https://doi.org/10.1016/j.prosdent.2025.05.011
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More for · 2
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How To Protect Your Hair From Sun Damage. (n.d.). health.clevelandclinic.org. https://health.clevelandclinic.org/best-ways-to-protect-your-hair-from-sun-damage
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WI, L., TM, K., S, L., G, L., & SY, P. (2026). Bioinspired Melanoidin-Polyphenol nanocomplex for hair protection and mechanical reinforcement with antioxidant activity.. doi.org. https://doi.org/10.1016/j.mtbio.2026.103277
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