Wella SP Volumize Mask volumizes and strenghtens fine to normal hair. It leaves hair stronger, adding extra volume. It does not weigh hair down. Benefits More volume for a long time. Intensive weekly treatment that volumizes and strenghtens hair from the inside out. Visible results. Active ingredients add extra volume and body to hair. Polymers protect hair against environmental aggressors. The amazing formula strengthens hair without weighing it down. How to use Wash your hair with one of the SP Shampoos. Apply a sufficient amount of mask –using a brush- to hair. Massage through hair to distribute evenly. Leave on hair for about 5 minutes. Add a small amount of water, massage, rinse thoroughly.