Davines Heart Of Glass Blonde Hair Repair Mask Adds brightness and shine to blonde tones. Thanks to the baobab extract, it strengthens the hair fibers, helps prevent breakage and split ends. Nourishes, moisturizes and restores elasticity. Method of use Apply to towel-dried hair, lengths and ends. Leave for 5 to 10 minutes, brush and rinse thoroughly. Use once a week, or more often if the hair is very damaged. In case of contact with eyes, rinse well.