Beard hair density increase. A possible role of topical tretinoin application?

The dermatologist's guide to beards: a review of structure, function, care and pathology

Facial hair is a commonly desired feature for many individuals. Despite a breadth of dermatology literature covering strategies for removing facial hair, there are no known articles summarizing strategies for facial hair growth or reviewing common facial hair pathologies. Here, we assess Google Trends to describe significant increases in search terms related to facial hair growth and maintenance over the last decade, suggesting an increased public interest in this topic. Next, we review ethnic differences that may affect facial hair distribution, growth, and predisposition to certain facial hair pathologies. Lastly, we review studies on agents used for facial hair growth and review common facial hair pathologies.

Beard Alopecia: An Updated and Comprehensive Review of Etiologies, Presentation and Treatment

Facial hair is an important social and psychologic aspect of clinical appearance for men. The purpose of this review is to provide a comprehensive overview of the causes of alopecia of the beard including the prevalence, pathophysiology, clinical presentation, and treatment. In this review, we highlight more common causes of beard alopecia including alopecia areata and pseudofolliculitis barbae, infectious causes such as tinea barbae and herpes simplex folliculitis, and rare causes including dermatopathia pigmentosa reticularis and frontal fibrosing alopecia. This review serves as an important resource for clinicians when faced with patients suffering from beard alopecia.