Ever wonder why your line is so limp after spraying it with Reel Magic?
Reel Magic is a petroleum based product. It's because it strips the outermost layer from your line, making it limp. Eventually, as J said, you either get mush or you get a line that is dangerously brittle. I use the term "dangerously" because the baits I'm throwing ain't cheap nor are they light. One wrong move and an expensive bait is going flying, never to return.
Line and Lure uses water to deliver its fomula onto the line. As the water evaporates, it leaves the actualy conditioner on the line.
Petrol products and line is no bueno.