A great spray tan can last up to 10 days. This all depends on how you care for your spray tan. Avoid shaving, harsh exfoliating and oil-based products to help your tan last longer. Keep your skin hydrated by moisturising daily. You can always top-up your tan with a gradual tanner to prolong the life of your tan. Avoid spending long periods of time in chlorinated water as this will strip your tan.