Solar Exposure and Photoprotection Behaviors as Determinants of Acne Vulgaris Severity Among University Students in Andalusia-Spain

Background: Acne vulgaris is one of the most significant yet prevalent chronic inflammatory skin diseases globally, characterized by marked clinical heterogeneity, a fluctuating disease course, and strong sensitivity to environmental and life factors. The exposome is a lifelong environmental, psychosocial, microbial, lifestyle, and intrinsic exposure that offers an integrative framework for reconceptualizing acne as an environmentally modulated inflammatory disease. Objective: To evaluate how ultraviolet radiation and sun protection habits influence acne severity in high-insolation Mediterranean climates, as suggested by support between environmental exposure and skin health amongst young adults in the Andalusian region of Southern Spain. The cohort consisted of 333 students affected by this syndrome at the University of Granada (UGR), the University of Seville (US), and the University of Córdoba (UCO). Methods: The study examines solar exposure and photoprotection as determinants of acne severity through typical cross-sectional, questionnaire-based methodologies, such as validated sun habit surveys administered to university cohorts. These research methods analyze UV radiation exposure levels, sunscreen use, and lifestyle factors against acne grades to assess how sunlight triggers flares, reduces inflammation, or causes post-inflammatory hyperpigmentation. The study design uses cross-sectional surveys, assessment of acne severity, quantification of solar exposure, and evaluation of photoprotection. Key variables and analysis include exposome factors and statistical modeling. Results: The results inform the researchers that non-coding RNA networks are key modifiers, translating environmental exposures into persistent inflammatory and metabolic responses within the pilosebaceous unit. This result is set against the backdrop of adopting a HealthEquity and social determinants of health (SDOH) perspective, as the researchers emphasize how socioeconomic inequality and structural issues shape disease severity, exposure and burden, and access to care. Conclusion: The researchers propose that low-cost, community-level prevention strategies, exposure-informed and combined with corroborative evidence-based therapies, offer a much more pragmatic, plausible, and equitable approach to acne management. In this regard, integrating molecular mechanisms with real-time global equity considerations advances the framework toward a deeper understanding of acne pathophysiology and a paradigm shift toward more inclusive clinical practice. Novelty of the Study: This study demonstrates that structured health education is a pivotal therapeutic component in managing Solar Exposure and Photoprotection Behaviors, particularly when it facilitates sustainable Acne Vulgaris Severity. The findings suggest that education-driven behavioral modification, including the adoption of bioactive-rich dietary patterns, can effectively complement pharmacological treatment and improve metabolic and clinical outcomes.