Just fuck off with this study. Whether or not it has been proven to work, 1) actual sunlight will clear balanitis up better, and you will also get Vit D which you cannot produce otherwise, and 2) cutting fast food and soda from your diet will help you 100x more than flashing a light at your dick while thinking "wow my foreskin is going to be so clear :)"

...because it wont be. That light will not help you. If I were your parent I would break that thing and molest you