Does anyone out there have a baby with super sensitive skin?

If so, what do you use on them? The only things i've been able to use so far is the arm and hammer perfume free dye free sensitive skin, and no softener but the dryer , also unscented in any way. For soap i use the dr. kirks castile bar soap (uses coconut oil to lather), i've also had good luck with just baking soda, but so far that's it. I can't even do mineral oil on him, so...i've got pretty much the laundry and bathing situation figured out, but as we know, bar soap isn't really good at moisturizing.... So, i was wondering what other people have found that can be used on a super sensitive baby. He is allergic to anything with perfumes, some things with dyes, and some of the chemicals that make soap lather, we tried vaseline too, and mineral oil...which was ok for a few times before he broke out again. Anyone have any ideas? He's not super dry, but his legs do get kinda scaly looking every now and then and it seems i'm always trying something new. Any ideas? I'm at a loss... sunscreen and bug spray would be helpful as well, he's going to be 2 in July. Thanks!!