Journal
JOURNAL OF THE AMERICAN ACADEMY OF DERMATOLOGY
Volume 82, Issue 3, Pages 723-728Publisher
MOSBY-ELSEVIER
DOI: 10.1016/j.jaad.2019.09.085
Keywords
alopecia; frontal fibrosing alopecia; hair; hair loss; inflammatory hair disorder; lichen planopilaris; primary lymphocytic cicatricial alopecia; scarring; sunscreen; titanium dioxide; ultraviolet filter
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Frontal fibrosing alopecia (FFA) is a cicatricial alopecia of unknown etiology. The incidence of FFA appears to be increasing with time, leading to suspicion of a possible environmental trigger. Observational studies have reported a positive correlation between facial sunscreen use and FFA. This finding raises the question of whether sunscreen use plays a role in disease development. In this article, we review the available literature on the association of sunscreen with FFA. There is insufficient evidence to establish a direct causal relationship between sunscreen and FFA. Further studies are required to better characterize the role of sunscreen and the environment in the pathogenesis of this unique disease.
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