To prepare for a spray tan, exfoliate and wax or shave at least 24 hours in advance, avoid applying any lotions, oils, makeup, deodorant, or perfume on the day of your appointment, and wear loose, dark clothing to your session. It's also helpful to maintain well-hydrated skin in the days leading up to your tan by moisturizing daily, just not on the day of your treatment 

After a spray tan, avoid activities that cause sweating or moisture for 4-8 hours until your first rinse to prevent streaks. After showering, gently pat your skin dry instead of rubbing, wear loose-fitting clothing, and moisturize daily to extend the tan's life. Avoid harsh soaps, exfoliants, hot water, and activities like swimming, long showers, and saunas