how do you think about the exfoilating foot mask?

Whether there are side effects of feet peeling exfoilating mask: 

In general there is no serious side effects, but to exfoilating foot mask need to reach the effect of peeling, add the salicylic acid composition, in view of the buyers alcohol allergy, or cautious attitude, if mind cutin membrane of chemical composition, can consider to use physical way to remove dead skin, such as grinding stones, grind arenaceous exfoliating tool grinding, can also be homemade membrane. The foot film produced by our company is made of mild salicylic acid formula, which can be used for more than 90 minutes. It will not hurt your feet too much, so you can rest assured to buy.