How often are you using this stuff? Fretboards really don't need to be conditioned more than a few times a year, in between string changes a wipe down with a cloth should be all you need, when you do change strings, a good way to clean the fretboard and buff the frets is to take a piece of leather, something fairly thin and flexible, and use the rough side to buff, side to side across the fretboard, it does a nice job. A few times a year I use pure lemon oil, make sure it's pure, no silicone etc, and wipe it on a clean fretboard, let it soak in, and wipe away any excess, I really like it on ebony fretboards, it's clean, leaves no residue, and it does dry, some of the commercial junk that gets sold in music stores can actually ruin a guitar if used often over a long period of time, ............