Stengthen hair with Wella Professionals Resist Strengthening Shampoo For Vulnerable Hair. Enriched with natural rooibos extract, the creamy formula restores hair leaving it thicker and full of vitality. Ideal for mature locks. Wella Professionals Resist Strengthening Shampoo For Vulnerable Hair prevents hair breakages and split ends by getting to the root cause of weak hair and restoring its natural strength. Hair is left irresistibly smooth, strong and glossy. Directions for Use: Massage into damp hair and work into a lather Rinse thoroughly Repeat if necessary