Kyser "Lem-Oil" Fret Board Conditioner
For your consideration, Garrett Park Guitars presents this Kyser "Lem-Oil" Fret Board Conditioner.
From the Kyser website:
Kyser Lem-Oil might just be the best-kept secret for luthiers worldwide. Keeping your fretboard from drying out prolongs the life of your instrument, and keeps it looking shiny and new. A smoother fretboard makes for faster, easier playing. The next time you change your strings, treat your fingerboard to a cleaning with Kyser Lem-Oil. Available as a 4oz spray bottle or portable canister of 35 wipes. We now have a new and improved Kyser Lem-Oil formula that is clear and is made with real lemons.