Leather Honey Leather Cleaner: Non-Toxic Leather Care Made in the USA Since 1968. Deep Cleans Leather, Faux & Vinyl - Couches, Car Seats, Purses, Tack, Shoes & Bags. Safe Any Colors & White Leather

I went with Leather Honey Leather Cleaner and Leather Honey Leather Conditioner based on suggestions here and reviews online. I didn't use them on the Sienna yet, because I read the seats are already treated and to wait 3-6 months for the first treatment, then every 6 months thereafter. I also read to do it more frequently if you live in a higher temperature climate or leave your car out in the sun often. UV hurts leather. Edit 1: I did use both on my old car on Sunday and so far so good. I would recommend being careful with the conditioner. I got it on my shirt and pants, because I was careless, and effectively ruined both pieces of clothing. In the same way getting pasta oil on your shirt might leave a permanent stain. Edit 2: My car is always parked outside so I'm looking into window shades now to help protect the leather from UV when I'm not driving it.