Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Did not help appearance of my scar gets too dirty to use as directed

I tried this product because it says the one peice lasts for the whole 3 months. It does not last and gets dirt stuck all in it rendering it unuseable. The dirt/lint does not wash off out of the gel. I woulf have to have 12 or 24 of these to get through the 3 months treatment, which would cost me a fortune. I have used other brands that have a thinner more solid "sheet'ish" silicone layer that washes clean after each use. It gave me 12 sheets per box that you use for a week or so then use a new one. Much more sanitary. I will stick with the other brand which worked on my last surgery scar really well.