Deva care no poo shampoo and one condition conditin are a system of products predominantly for ladies with curly hair that promote healthy, unfrizzy, smooth and managable locks by using a complex system that doesn't rely on the use of foam enhancers or any of them other crap like sulfites we usually find in our shampoo products that weigh down, dry out, and don't treat damaged hair. The system locks in moisture in the hair with relativly fast results. i use it myself since i have fried, dyed, and just beat up my hair and my hair is definitely less damaged. They even have a hair coloring line.
Also the paul brown line is great and smells good. It's hawaiian and it literally makes your hair feel like silk, with it ingredient list being predomminatly natural products such as jojoba oil, avocado oil etc.
Look for a shampoo that is not clarifying because that is too strong for weak hair, it should have conditions properties but not be labeled a "conditioner and shappo in one these products are crap". Try moisturing shampoos that promise to help restore hair's natural ph.
As far as conditioners go make sure you get one that has penetrating qualities that way you are ensuring that conditioner is oing straight to the source of the problem and treating your scalp and the cortex of your hair.
I would also recommend get a weekly proiein/moisture deep consitioning or replenshing pack from your local salon, they are ten bucks typically and with a solid routine withh do wonders on your hair. a scalp massage with cholestrol once a week with a good brushing is also a good idea.