I think I answered most of your questions in my previous posts. I eat pretty healthy and have cut out most Sugar from my diet. also if anyone is concerned about Accutane and its relation to peeling lips, Accutane decreases the bodys ability to absorb vitamin b7 also known as biotin, so this vitamin might also benefit, its for hair skin and nails. and biotin deficiency can result in peeling lips. just something I read. but anyways, hydrating the lips with glasses of water, showers, and the sink is what really cured me.