spray tanning is a quick, professional method for achieving a natural-looking, sunless tan. a fine mist of tanning solution is applied evenly over the skin by a technician, developing into a bronzed tone within a few hours. formulas vary from light to deep shades and often include moisturizing and skin-perfecting ingredients. spray tans provide immediate, even color without UV exposure and can last about 5–10 days with proper care and maintenance.