The Ridgeline, like nearly all American and Japanese cars has "coated leather". Nothing is really going to soak into the leather like it would on uncoated, natural leather. A lot of folks have had good luck with Lexol, Zaino, Duralgloss and a few others brands such as Wolfgang and Pinnacle. Some believe that Zaino is repackaged Duragloss... I don't know. I'm still sorta old school and try to support the "locals" so I purchase a lot of OTC stuff and I believe that the Duragloss brand is pretty good and it's manufacturered locally in Burlington NC.
You can follow up with 303 Aerospace Protectant for extra UV protection as well.