Leatherique is the way to go. Been using it for years. Official product recommendation of the Rolls Royce Owners Club, good enough for me!
Some of the other products include agents that may clean the lather but over the long term will degrade the leather. Leatherique does not.
I have no connection with the company, just a very satisfied customer. And yes I have used Lexol, Griots, and other store-bought brands (Meguires, armorall etc) and found Leatherique to be superior.