Spray tanning must do... Every spray tanning application or self tan lotion application requires some time for the bronzing reaction to take effect on your skin, so DO NOT shower for at least 6-8 hours after the application. The best thing to do is to have it in the afternoon and let it react overnight. Only use a moisturizing lotion after you have your shower and then moisturize every day thereafter. You will see some of the color wash off...