Hi there Mayleen,
It sounds as though you are doing your utmost best to look after your hair.
You need to use 2 products: the Davines naturaltech rebalancing shampoo should be applied to the roots and top and then condition the ends with the Davines naturaltech nourishing vegetarian miracle. You can also choose to alternate, so use the rebalancing shampoo one day and then use the nourishing range the other. The rebalancing shampoo should start to get rid of the problem in no time :)