This mousse pumps up hair for high- level volume all over no matter how flat it starts out. Its body- building ingredients lift thin strands of hair, adding heavy- duty height, but still leaving the hair light as air for great, natural- looking volume. This pro performance products also protects your hair from heat damage caused by hairdryers, so if you go on to blow- dry your hair after the applying the mousse, then be assured this product will help prevent heat damage that can be caused. To apply, shake can well and dispense 2- 3 egg- sized amounts on damp hair (stylist tip: you need more than you think).Work through the hair from root to tip using your fingers. Or to fully coat the hair, dispense the mousse directly on a vented brush then brush through the hair lengths.