Sunscreen and frontal fibrosing alopecia: A review
Robinson G, McMichael A, Wang SQ, and Lim HW. Sunscreen and frontal fibrosing alopecia: A review. J Am Acad Dermatol 2020; 82(3):723-728.
Journal of the American Academy of Dermatology
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.
ePub ahead of print