I used it on my acoustic rose wood fingerboard.I am clumsy so I got it everywhere. Didn't do any harm at all but I would be more carefully next time in case I am not so lucky!!
It Cleans really well (man that was dirty)and afterward the neck felt great.Nice to
slide up and down and I just seemed to get a better set up.
It might be that my fret board was just very dirty and some cheaper cleaner would have given the same results
but I paid my £3 (about $6 I think) so I am choosing to believe it was worth it
l would like to know if anyone else thinks it any good. I love guitar shops and once inside I want to buy everything!!!!. I have a drawer full of stuff that was a great idea at the time but I haven't used ,I don't think the lemon oil is one of them.....is it ?