Guys, for leather care I've tried just about every product available. By far the best I've used is also the least expensive - petroleum jelly (PJ). There are no additives, perfumes or exotic chemicals. It does darken leather but so does all the expensive stuff.
Before I put anything on the leather, I vacume it to remove all loose dust, fungus spores and insects. If there are beads or anything loose that you don't want lost in the vacume bag steal a pair of nylons for your wife or significant other, place the toe of the nylon over the vacume nozzle and you should catch anything the might come off that is the big.
Once there is no particulate material left I spray the leather with rubbing alcohal - this kills any bacteria and fungus that I might have missed. I then coat the item liberally with vaselene (PJ), wait a few days and then remove any excess.
Give it a try.
Greg