Classic Tan Our traditional sunless tan that allows you to complete your first rinse within an 8-12 hour period You should get the Classic Tan if: You're having a low key day and can stay in dark loose fitting clothing for 8-12 hours You're fine with sleeping in the solution before doing your first rinse Express tan Our rapid solution that allows you to complete your first rinse within a 2-4 hour period You should get the Express Tan if: You're a girl on the go and can't be lounging in loose clothing all day long You have a morning appointment and are worried about smudging your tan throughout the day You have an evening appointment and want to rinse off the bronzer before you get into bed so you don't get any on the sheets As you can see, the decision to choose a Classic Tan over an Express Tan depends on when you book your appointment (in the morning or evening) as well as your personal preferences and schedule.