If this is the product you're considering you should know it's for
restoring black trim, not detailing:
I would not use it unless you are trying to restore graying plastic back to black. There are plenty of youtube videos that review this and other products for this purpose.
The plastic cowl on my Sienna had turned gray and in researching these products I decided to try Mother's Back to Black which appeared to be the least risky. It did a passable job and lasted quite a bit longer than I thought. Some of these products amount to paint; one review showed a paint-like product crazing after 6 months with no turning back, but I don't recall which one.