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Updated: Aug 9, 2025

Pharmacologic Induction of Epidermal Melanin and Protection Against Sunburn in a Humanized Mouse Model
Published on: September 7, 2013
Bad lighting: Effects of youth indoor tanning prohibitions
Christopher S Carpenter1, Brandyn F Churchill2, Michelle Marcus3
1University Distinguished Professor and E. Bronson Ingram Professor of Economics, Research Associate at the National Bureau of Economic Research, Vanderbilt University, 306 Calhoun Hall, Nashville, TN 37027, United States.
Abstract:
Indoor tanning beds (ITBs) emit UV light at high intensity and have been classified as carcinogenic to humans by the World Health Organization since 2009. We are the first to study the role of state laws prohibiting youths from indoor tanning using a difference-in-differences research design. We find that youth ITB prohibitions reduced population search intensity for tanning-related information. Among white teen girls, ITB prohibitions reduced self-reported indoor tanning and increased sun protective behaviors. We also find that youth ITB prohibitions significantly reduced the size of the indoor tanning market by increasing tanning salon closures and reducing tanning salon sales.
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