We've been using the MusicNomad fret polish for a while now, and are really happy with the performance. The frets shine up well, it doesn't mar lacquer, and is colorless on dark wood.  We like it!

Last week we ordered 200 necks from one of our suppliers, the necks had nickel frets and some fairly poor fret polishing on them. They needed some TLC before so we could sell the necks, we used the one tube of FRINE to polish 135 necks so far. GREAT STUFF, and a little goes a long way. 

I recently purchased the MusicNomad FRINE Fret Polishing Kit from a local guitar shop that has an online store. I'd heard good things about it and couldn't wait to give it a try. As soon as the kit arrived I ripped my strings off my guitar, selected the correct size fret guard and applied the polish to the cloth. With really little effort my frets began to shine like they hadn't shined since the guitar was new! I also bought the F-one fretboard oil to clean the fretboard. The F-one oil brought my ebony fingerboard back to life and it now looks amazing!

After putting new strings back on the guitar, I don't think it's ever felt so good or so fast! I can't believe how much it made a difference to clean the frets. It not only looks brand new again, but it honestly feels like there's no friction when sliding or bending. I change my strings regularly and I know how good new strings feel, but this is something else. It just makes me want to play and play.