Does the job.
This 25-year-old leather chair is located next to an often open window.  Sun, temperature, and time took a toll.  Photos are of an untreated arm and treated arm.  The treated arm, as you can see, was the one closer to the window.  It's big chair, and took about half the container.  Very happy with the result.  It is a thick liquid (think syrup), so you have to exercise some caution when applying if you don't want to get it on the floor or surroundings.
Rating: 5 stars