I'm sure some searches will turn up different products depending on what finish you finish are applying it on. Check with a respected luthier or manufacturer, for your instrument.
I have and use:
Mequairs #9 and 7, Ken Smith's polish, Trick's Drum Polish (recommended by Lakland's head luthier), Virtuoso cleaner and polish, and some plastic cleaner/polish whose name escapes me at the moment.
Also, naptha (lighter fluid) for wiping down strings (I use some TI JF344's which need heavy cleaning prior to installation due to polishing compound residue etc. - both TI and Pyramid never remove this from thier flatwounds). Naptha can be used on most finishes for heavy cleaning - particularly nitro based. But, check first for your type of instrument finish.
For the care of my fretboard's (unfinished rosewood) I use a light application...very light, of Howards Orange Oil with an old white washcloth. After wiping this clean, I apply a very light application of Howards Feed n Wax, wait 20 minutes, then buff with a soft cloth. I tend to do the fretboards twice a year.
I wipe the fretboard, strings, and body with a dry cloth after each time I play. Maybe every couple of weeks I additionally wipe the body with Ken Smith/Tricks polish applied to a cloth, then buff.
That's what I do anyway.....