Callus Solution saves you time and effort by doing the work for you. It breaks down calluses in 1-3 minutes so you can simple file or buff them away. For professional use only.34 fl oz. Callus Eliminator Professional Formula Be Natural: Be natural Callus Eliminator Saves you time and effort by doing the work for you!!!! Breaks down calluses in 3-5 minutes!!! Directions:After soaking,liberally spread Callus Eliminator over callus.Wear gloves or rinse fingers after applying.Allow to penetrate 3-5 minutes depending on the callus buildup.Then wipe away excess and use a file or buffer to gently remove callus.Wash thoroughly with water after use.