According to most car detail fanatics, Woolite diluted is the best cleaning agent for leather followed up by Zymol Treat or some other high quality conditioner that is formulated specifically for leather.
Here is a good post from someone on autopia
Quote:
The Zymol leather cleaners and conditioners [found in target or other similar stores] are made by TW (Turtle Wax).
Zymol Treat is the real Zymol leather conditioner.
There are much better leather conditioners.
There is Sonus Leather Conditioner, Zaino "Leather in a Bottle", Leather Master etc.
Lexol, being really a tack/saddle condtioner that was reformulated due to the car nich, is not what I'd use on car leather.
To be quite honest, good old Woolite and distilled water is a great leather cleaner as most leather cleaners are nothing more than just that, but add coloring and fragence etc.
Most leather today is treated and has a coating not too much different from paint. Otherwise, you get color bleeding and staining more often with old leather, which much as you know in seeing older cars crack and have very distinct looking hides. Those require different products heavy in solvents and oils to treat.
You want something lighter, no solvents, some that may have leather smells, or others that bring out the natural leather odor.
Keep the Lexol for home use and go and get some leather condtioners made sstrickly for car leather.
Regards,
Deanski