I've had good luck with Sonus Leather Cleaner. It's a pH balanced cleaner that’s both leather and vinyl safe. I finish it with Sonus Cockpit Detailer, it's Anti-static, repels dust, blocks UV rays for up to 30 days, and it's
MATTE FINISH!
Car Interior Detailer, Cleaner & Protectant - Sonus Cockpit Detailer