Smoothing lasted two months and a little more, I never change because it is aggressive, I'm looking for another brand The application is very aggressive, it must be applied to the outside in the street, outdoor otherwise the whole house will be toxic, even with the windows open, it was a unique experience, I wanted to stop at any time because the product is really unbearable and irritates the eyes, but in the end after the final smoothing because it will take two, I was too happy, and I understood why he is said to suffer to be beautiful ... .. The result is superb, but the duration is short, I think, not to retry and thank you anyway