A Volumizing Customizable Treatment Works With Any Wella SP Masks To Intensify The Effect Adds Noticeable Volume To Hair. To Use: Blend 1 Single-dose Of Infusion With 25ml Of SP Mask Evenly. Spread On Toweled Dried-hair. Leave On For 5 - 10 Minutes. Add Heat To Enhance The Effect. Rinse Well Product Line: Wella Professionals - System Professional Size: 6x5ml/0.16oz.