Nothing major, but I felt like each time I used it (not close together and not a whole lot of it - small amounts) rather than nourishing the bag, it seemed to draw out the black die leaving it a faded black/dark brown. Not noticeable at all in dim lighting, but if under bright lights/day light then it definitely bothers me a bit. Also think a bit of UV damage which may be why the leather looks a little dry on top. Back side of the bag is perfect though! Shame its not the other way around! This is why I want to add some colour and shine back into it. Have you used the bag yet? - Any colour transfer on clothing?
I have'nt tried my bag yet but I did rub my hands all over my bag to see what happens... no color transfer as yet

But I did use on the corner of my vintage maxi.. no color transfer so far on my clothes or jeans or furniture...
I am thinking of trying white leather cream to restore white lambskin...
anyone have tried that before?
