Lemon Oil by D'Addario is a natural cleaner and conditioner formulated to remove dirt, grease and build-up from unfinished woods on all string instruments. It is particularly recommended for use on fretboards and unfinished woods. Lemon Oil also helps to condition your instrument to resist dryness which can prevent cracks and extend its life. Natural cleaner and conditioner protects your guitar Removes dirt, grease, and wax build up Helps condition your instrument to resist dryness Extends the life of instruments Recommended for use on unfinished woods