I have used this product for the past 10 years on all of my Dr. Marten shoes, as well as many others.  This stuff works great!  This is my 4th container of the Wonder Balsam.  So, either I don't use it often enough, or a little bit of this goes a long way.  I choose to believe a little bit goes a long way.  This product is as good today as it was 10 years ago when I first tried it.  The only difference is they appeared to have added fragrance of some sort to it.  Still awesome!