Yes, banana peel is good for skin which is good in lutein , an antioxidant, plenty of potassium. Rub the inside of banana peel on the affected of psoriasis. You can seen the best result within few days. It is also used for acne, rub the inside of banana peel on the acne , you can see best result within few days & best time to apply in the nights. It is good for many other skin problems like ivy rashes, etc.