Big Bends Fret Board Juice 1 oz.

I use this to condition the rosewood fingerboards on my guitars. For that, it's pretty much perfect. It's just mineral oil, and once wiped-down with a cloth, it dries and leaves an odorless fingerboard with a clean, finished look.

Although it will help clear-up any oil-soluble dirt and grime, it's important to know that it's not a cleaner. (Use a damp cloth or naphtha for the occasional light-duty cleaning work.)

The container is small, but, unless you're a luthier, guitar tech, or have a huge collection of guitars, it's almost certainly enough for the once-in-a-blue-moon job. Recommended.