Seat leather rejuvenation

[Black 535i]

I used the BMW approved leather rejuvenation yesterday and they look good but I have some fading of the black leather. What have you used to darken or deepen the hue to remove the fade? Is there a dye or polish one could use? Would shoe polish work or does BMW offer something particular for this purpose?

[BMWDriver]

www.leatherique.com (http://www.leatherique.com)

(for Canada : http://www.leatheriquecanada.com/)

http://www.bmwe34.net/Wiki/tiki-index.php?page=Seat+treatment

I'm looking to this, and also to redo some of the faded vinyl, especially the dash.

[Ross]

Shoe polish is a bad idea unless you wear clothing mathing your cars interior everyday.
Shoe DYE has worked for me on steering wheels but faded rather quickly.

[Black 535i]

I do wear light colored clothing so that could be an issue.