Here's a few leather car products that I trust:
- Leatherique
- Leather Honey
- COLOURLOCK
- Geist
P&S, CarPro, Koch Chemie, Dr. Beasley's also have great options. The thing here is that we actually have real leather in the LCs/LX570s, so it's not like modern pleather/overtreated leather that don't require the same level of attention/upkeep to prevent tearing, cracking, fading, etc.
I might have recommended Lithium Leather Love (another alternative is AMMO's Silque Leather Balm); I love tit and use these balm products as a top coat because the bees wax provides an additional protective/waterproof layer. Helps make sure that if I spill coffee, it doesn't immediately start getting absorbed into the seat.