Hair products for babies?

My daughter is mixed and has super curly hair but has caucasian textured hair. It is super curly for a day or so but after that it gets frizzy and wild and flat. I don’t want wash it everyday and Detangler gets super filmy on her hair. Any products or tips? My hair is just straight so I don’t do much to it and her fathers hair is short and he just uses some gel stuff.