Rosewood is a dense, reddish-brown wood that is harvested primarily in Central America. This type of wood is commonly used on guitar fret boards and sometimes on the bodies of guitars as well. Other uses for rosewood include furniture and decorative pieces, such as chess sets or figurines. Rosewood is commonly used on guitars because it has a rich, warm tonal quality. If you have an item made of rosewood, you will need to polish it regularly in order to keep it looking its best. Keeping rosewood clean and polished also helps to protect the wood.
Dampen a soft, lint-free cloth with a bit of water.
Wipe down the rosewood surface in order to remove any dust, dirt or grime.
Run a dry, lint-free cloth along the rosewood to dry it.
Apply a few drops of lemon oil or other quality furniture oil to a clean cloth, and use it to rub the oil into the rosewood. Use small, circular strokes as you apply the oil. You don't want to apply so much oil that the wood feels greasy. A small amount of oil should return a sheen to the wood and also help to restore its moisture.