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I have used this product for years and probably always will. GHS string cleaner is best used before and after your jam sessions. It will help prolong the brightness of your strings and clean a lot of the sweat and gunk that is picked up off of your fingers/hands. It's comes with a lubricated stick and cloth. You run the stick across the strings and rub the cloth afterwards to clear away any excess oil. The lubrication will also help you play faster, if that's how your style. Great stuff.