I had a car for sale and there were two large food stains on the passenger seat that were at least four years old. I tried other products but nothing helped. After two applications of Zymol, the spots were completely gone. Applying this to the shiny parts of the rollers blends in with the rest. The only thing it didn't do was remove the stretch marks that are universal to all leather seats. Now I need a product that will tighten the skin to get rid of wrinkles so I can use it on my face.