I've used this for years in the sticky summer months when the strings feel like they are coated with tar. A quick spray on the fingers or directly on the strings will cure even the stickiest of strings. Some will spray it on a cloth, but I'll just spray directly on the bass. It won't hurt the finish on any those of bass I've ever used, and it's an absolute life saver when those fingers just won't move. Baby powder or corn starch will just get gooey and make a mess if there is any water or sweat at all. If you use roundwound strings it will get gunk in the rounds, and a rosewood or similar open grained fretboard will get gunk in it as well. I would avoid it at all costs.