Wella professionals resist strengthening shampoo for vulnerable hair has been especially created for damaged dry and mature hair types the creamy shampoo formula is enriched with natural rooibos extract to both strengthen and repair the health of your hair the formula gently restores your hair without weighing it down the shampoo has been designed to prevent breakages within the hair and split ends by targeting the cause of weakness within your hair you will be left with thicker hair wh