What is the best hair hair products for black women who have very dry hair?

I have 4 mixed granddaughters. One has very curly dry hair and the other 3 have very long hair but it is still on the dry frizzy side, especially on the ends. Right now I am using Pantene shampoo and conditioner for women of color. I have tried many things and I am willing to pay for an excellent product.. need some advice please