Stuff is amazing. Does not discolor. Used on brand new boots, even new boots can use some conditioning. Leather just sucks this stuff in. Very easy to apply. A light spray of Gard-More and you're all set. I think my new boots look better than when I took them out of the box.
Discovered Bick 4 way back in the 70's. I have used it to care for western boots, horse tack, auto and furniture upholstery with fantastic results. While I have tried other products because I didn't think it made that much difference but was wrong about that. The bottom line is I never found anything as good. Now it's the only leather conditioner I'll ever use. I've just ordered some other Bickmore products and will review them as soon as I can give an honest assessment. If they're as good as Bick 4 the reviews will be very favorable.