Yeah, might as well be humidifying the room where he's at. Feeding him with moisture rich foods like fruits, raw meat, pre-killed superworms and/or adding a little oil in his food plus supplementing with vit.E rich foods like egg whites can help improve his skin.
Aloe vera sap turns black with a staining yellow tint upon long exposure to air so be careful with using it. It is also bitter so watch out if he tries to lick it. He may try to anoint himself with it though.
" With great power comes great electricity bill... "