For general smudges and fingerprints, we recommend saline solution and a clean microfibre cloth.
If you have deeper scratches or dings, you can use polyurethane-friendly buffing compound or polish like you'd use for a boat or car. You should double-check the compound you use is nonreactive with polyurethane finishes.
The above approaches work for both our carbon fiber and wood guitars as all our finishes are polyurethane.
For cleaning fretboards on our wood guitars, we recommend the traditional lemon oil treatment. (Just search "how to clean a guitar fretboard" on YouTube.)