Many dentists use a UV light to whiten their patient’s teeth, but only the beauty experts at Twilight Teeth reasoned that clients could use the same light to tan their skin while whitening their teeth. The UV lights of their tanning beds shine on bodies and illuminate smiles, comfortably held open by a mouth guard and coated in gel. The gel activates under the light and contains 25% peroxide—among the highest concentrations in the industry. Since the gel is painted on instead of held in place by a whitening tray, it can brighten high beams with minimal discomfort. Clients who can’t stay at the tanning salon can take home a kit, which substitutes a portable UV light or a mason jar filled with baby stars.