I found 303 items of good quality and value other than this tire shine. Background: I take exceptional care of my vehicles and used many tire products prior to this purchase. I was very disappointed with this tire shine. Like all tire care products I've used in the past, I prep them with good quality APC and rinse thoroughly before applying. I applied it as directed and got a semi-gloss finish at best. I reapplied, thinking that the first coat had soaked into the gum. It made NO DIFFERENCE. Being persistent, I even decided on a third application, but to no avail - a matte finish. So. for shine - I think NO. As far as "duration" goes, I can never say. Give it to someone at the end. The first 303 product I used wasn't up to date.