https://www.swissvaxaustralia.com/co...ather-care-kit
https://www.swissvaxaustralia.com/co...eather-sealant
Get these and you won't go wrong. It's pricey but well worth it. And pretty much for all your interior leather areas not just the steering.
Clean using the cleaner and use the leather glaze to protect it in new condition. Don't use the leather milk provided in the cleaning kit until your leather is old (>3 years)
P.S. that's the Australian Swissvax website, the US prices will def be cheaper