They both work great. I would say if you run into dirty leather you should clean with Lexol first. As far as a conditioner I like the 1Z more but mostly because of the aftersmell
I really like Lexol's leather cleaner followed by Wolfgang Leather Care Conditioner. Tried Lexol's conditioner and have to agree with 07 z-oh-6. The Lexol left the seats feeling slimy, even after repeating buffings. After Wolfgang, the seats felt softer and more supple, with a nice even sheen.
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