Bullwhips are made of leather and over time will naturally lose their oils and dry out. That’s why there are leather conditioners and dressings that you can use on your whip to put oil back into it. The main three that I use are:
Pecard: This is great on the thong, handle or fall of your bullwhip.
Feibings Aussie Conditioner: This is similar to pecards, but in my opinion not quite as good (don’t get me wrong it’s still good). The upside is that it’s easy to find, most Tandy Leather Factory stores sell it as do a lot of saddle shops.
Pappy’s Dubbin: This will work on the handle or lash of the whip, and is fantastic on falls!
Jay-El: This stuff is great…but hard to find in the USA.
All of these three dressings / conditioners have a thick consistency and you don’t need much to put on you whip. Stay away from leather dressing that has a liquid consistency because you will really run the risk of oversaturating your whip and ruining it.
P.S. I’ll be in Oregon from 4/30 to 5/2, so if you email me or call me I might not get back to you until 5/3.