The Goldwell dualsenses ultra volume bodifying spray gives intense volume to flat hair. Simply apply it and then leve it in your hair, it is the ideal everyday companion.the ultra volume leave-in boost spray will provide your hair with the instant enhanced volume look. This product uses the volume system with multi-minerals combined with the instant microfluid technology. It is an ultra fine spray that strengthens the hair and improves combability for visibly enhanced volume and a feeling of having ''more'' hair.