Is it ok to bathe the baby with just water, without any soap?

yes it is.. but every parent prefers to bathe them with even a little soap.. I used cetaphil since then for my LO .. everytime I'm using other brand, his skin becomes dry and dark. so i stick to cetaphil products then. now, my LO is turning 3, he's using cetaphil baby wash with aloe vera then i also apply cetaphil baby lotion for extra moisturizer