Sexual minority males have one of the highest known prevalence rates of skin cancer, at 4.3% to 6.6% (an increased odds of 1.5 to 2.0) compared with heterosexual males.1 One likely explanation for this health disparity is sexual minority males’ use of indoor tanning, a Group 1 carcinogen.2 Indeed, recent research has found elevated indoor tanning among sexual minority men.3 However, no known studies have examined indoor tanning by sex, sexual orientation, and race/ethnicity, casting uncertainty regarding which groups are most vulnerable for developing skin cancer. Furthermore, no known studies have explored these relationships among youth, a salient limitation, given that indoor tanning before the age of 35 years is associated with disproportionate risk of developing skin cancer.