It looks like Ashie skin but goes away when I moist his cage
Oh yeah I guess I forgot to clarify, extra misting on the plants, not directly.Looks like a shed to me. If he hasn’t in a month he’s likely due, they shed quite often when they are growing.
Please don’t mist him extra as he sheds; chameleons are dry shedders and increasing humidity can hinder the process and cause shed to stick. They need to be well hydrated and nourished on the inside, not moistened on the outside .