I did so much stuff to try to improve my lips I can't say one thing helped more than another. The best advice I can give is to try to increase your overall health, alkalize, reduce toxin intake, detox, ect.. Doing these things will have effect on your lips. Peeling lips are a sign that something is wrong inside your body, same with skin rashes ect.. focus on achieving better health and the skin that peels should thin out and the area that peels should get a bit smaller.
by the way how are your lips doing recently, are they still the same as in the pic? do you still let the skin build up? what kind of cream do you use? are you taking any supplements?