Paint chips on carbon frames

[Crampking]

I've got paint chip marks on both my road and MTB carbon frames which I want to touch up. I would like to get some advise on what is the best to use for this. I was thinking of using Cutex of the same colour or maybe model paint. I am just afraid that it might do damage to the carbon. Can anyone please advise me on the best option?

[Crampking]

Any suggestions? Has anybody done this successfull or unsuccessful before?