I like Avalon shampoos and Earth Science conditioning masks. I try to stick to more natural with hair products because they tend to not strip the hair dye as fast as regular hair products.
I recently discovered Bondi Boost and I am in love. My hair has a quality to it that it's not had for years. It is quite a pricey brand but well justifiable for the results you get. Thicker hair with a restored shine and a lot stronger feeling.