The Jim Dunlop Formula 65 Guitar Fingerboard 01 Cleaner & Polish is a product designed specifically for cleaning and maintaining guitar fingerboards (fretboards). Here's what it does:

• Cleans the fretboard: It removes dirt, oils, and grime that build up on the fretboard from playing.
• Conditions the wood: The product helps moisturize and protect the fretboard, preventing it from drying out and cracking, which can happen over time, especially with unfinished wood like rosewood or ebony.
• Restores natural oils: It replenishes the natural oils in the wood, keeping it healthy and improving the overall feel while playing.

When applying, it's best to use a soft, lint-free cloth (like a microfiber guitar cloth) to gently rub the cleaner into the fretboard, then wipe off any excess.