What does this research mean for the field?

Excitation of the band origin of the oxybenzone radical cation results in an unexpected shortening of its excited state lifetime. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

This research aims to explore the photophysical mechanisms of oxybenzone as a sunscreen agent, particularly focusing on its excited state behavior.

April 1, 2026

Unexpected Shortening of the Excited State Lifetime of Oxybenzone Radical Cation upon Excitation of the Band Origin

JLJuan Cruz Latorre FMFranco MolinaCentre National de la Recherche Scientifique SSSatchin SoorkiaCentre National de la Recherche Scientifique

Key Points

This research aims to explore the photophysical mechanisms of oxybenzone as a sunscreen agent, particularly focusing on its excited state behavior.
Examined the excited state lifetime of oxybenzone radical cation
Analyzed photophysical properties upon excitation
Utilized spectroscopic techniques to measure outcomes
Found that oxybenzone's excited state lifetime decreases unexpectedly upon excitation
Highlighted the implications this has on its effectiveness as a sunscreen agent
Indicated that this behavior may affect skin protection against UV radiation

Abstract

The global rise in skin cancer incidence has intensified research into the photophysical mechanisms of sunscreen agents such as oxybenzone (OxB), a widely used UV filter. In its neutral form,...

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