On your first treatment your therapist will ask you a number of questions and a consultation card will be completed. You will then undress to your chosen dark underwear and remove jewellery. Barrier cream will be applied to your hands, elbows, knees, feet and other dry areas to reduce tan absorption; this would result in these areas tanning darker than the rest. Simply follow your therapists instructions, spraying will take around ten minutes. The guide colour you see will be showered off after your development time of 8 hours to reveal your natural looking sienna X tan. This is with the exception of the Express Tans, which develops after 1 hour.