Does anyone here know the best chemicals to use on your guitar for cleaning, without ruining the finish.. Thank You..

I use a pick on my fret board to get the dead skin off then i use this - http://www.jimdunlop.com/product/fretboard-65-ultimate-lemon-oil and then i clean it with a cloth.

I too use same leamon oil by Dunlop 65 for fretboard and body Gibson LPJ (wood without lacquer)

For guitars with lacquer i use polish cleaner 65