Here is only hair & body wash recommendation. You should choose one that does not have sulfates and parabens. One thing you should remember is that when your child takes a bath, do not use warm water and dry immediately after bathing. Just tap the towel.
This step can not be missed! Right after take a bath and tap only with towel, use body lotion directly. It will help keep your child's skin moist. But still, choose paraben and sulfate free!