Sun In Hair Lightener Gentle With Sun-In, hair lightening has never been so easy! Sun In's quick & easy spray lets you create a natural look that you can control. Each time you use Sun In your hair gets lighter & lighter, so you decide how blonde you go. Sun In works with your natural highlights. Spray generously for a sun kissed effect. Easy & convenient to use. No waiting around for your colour to develop. Relax in the sun or use a hairdryer to reveal natural looking highlights. Can be used any time of the year. Sun In's conditioners will leave your hair smoother full of body & more manageable. Special illuminators give your hair a bright & sexy look. The more frequently you use Sun In, the lighter your hair becomes & results vary depending upon your natural hair colour