I've been contemplating getting one of the following leather conditioners as an intermediate solution between doing the once a year Leatherique Prestine Clean/Rejuvenator Oil treatment:
Sonus Leather Conditioner, Made in Italy, $14.81 shipped.
Note: It looks like Sonus Leather Conditioner is not made in Italy anymore. It is made in the US (I don't know if it affectected quality and formula).
Einszett Lederpflege (1Z Leather Care, Maker of the famous Gummi-Pflege), Made in Germany, $18.89 shipped.
Zaino Z-10 Leather in a Bottle, Made in USA, $20.95 shipped.
Since there were no reviews comparing Sonus with 1Z and Zaino, I went and bought 1Z and Sonus. I probably will buy Zaino sometime in Spring when I am ready to place a bigger order with Zaino. Since they have a flat shipping charge it is not cost effective to buy just one item.
So far I tried 1Z Leder Pflege and while it was shinier then I expected (probably due to the fact it has carnauba wax in it), the seats look great.
Sonus Leather Conditioner, Made in Italy, $14.81 shipped.
Note: It looks like Sonus Leather Conditioner is not made in Italy anymore. It is made in the US (I don't know if it affectected quality and formula).

Einszett Lederpflege (1Z Leather Care, Maker of the famous Gummi-Pflege), Made in Germany, $18.89 shipped.

Zaino Z-10 Leather in a Bottle, Made in USA, $20.95 shipped.

Since there were no reviews comparing Sonus with 1Z and Zaino, I went and bought 1Z and Sonus. I probably will buy Zaino sometime in Spring when I am ready to place a bigger order with Zaino. Since they have a flat shipping charge it is not cost effective to buy just one item.
So far I tried 1Z Leder Pflege and while it was shinier then I expected (probably due to the fact it has carnauba wax in it), the seats look great.