I do not have fine hair, but I have never had as bouncy and lively hair, thus very moisturized, than with Carol's Daughter Cupuacu. It is supposed to be for smoothing hair, and yes, it does do that. It's the best thing I've been able to use consistently with consistently excellent results.
And it's the first time I can extend the days between hair washes where my hair does not feel all dried out or flat & dull & weighted down. (When I'm out walking in the cold I wear two hats, and my hair is still unbelievable after those hats!) 
You may be able to get that line at Target, but I'm not sure.