Impact of UV-based self-assessed photoaging on sun protection intentions: validation based on trail runners and their companions

Background: Appearance-based interventions emphasize how UV exposure contributes to the premature aging of skin.

Objectives: The current study was aimed at evaluating the impact of self-assessed skin damage based on UV imaging on the intention to modify photoprotection habits.

Materials & methods: A prospective observational study was performed. Mountain runners and their companions participating in the GAP Trail were invited to participate. Participants were asked to complete a validated questionnaire about sun exposure habits, and were invited to see an image of their faces using SkinScope.

Results: In total, 116 people participated in the study. The degree of photoaging established by the dermatologist using the Glogau score significantly correlated with that based on self-assessment by the participants using the UV system (p < 0.001). Almost all UV fluorescence image colours significantly correlated with the grade of photoaging. After seeing their image with the UV system, 65.5% stated that they would improve photoprotection measures.

Conclusion: UV imaging is a reliable way to self-evaluate photoaging and may reinforce photoprotection habits.