May 2011 in “Archives of Plastic Surgery” Korean men in their 20s and 30s most commonly have an inverted U-shaped hairline.
8 citations,
April 2018 in “Facial Plastic Surgery” Men and women have different hairline restoration needs, with natural design being more complex for women, and hairline changes being important for transgender individuals' transitions.
1 citations,
January 2014 in “Annals of Dermatology” Korean people prefer M-shaped hairlines and lower foreheads, with no major differences across various demographics.
19 citations,
August 2013 in “Facial Plastic Surgery Clinics of North America” Children's hairlines change shape as they grow, with women often developing a widow's peak and men's hairlines becoming more convex and possibly balding at the temples, influenced by genetics and hormones.
21 citations,
January 2000 in “Aesthetic Plastic Surgery” Researchers created a new system to classify male baldness, finding six types and a common hairline shape, to improve hair loss treatments.