Thanks to the smoothing particles present on the green side, it gently removes dry, hardened skin and foot calluses, especially on the heels or plantar area. By rubbing the skin with the white side of the sponge, composed of very thin smoothing particles, you will immediately make the feet soft and smooth. Easily removes paint and nicotine stains, making it perfect for hands, elbows and knees. HOW TO USE: make a warm foot bath with Timodore Oxygenated Salts, then moisten the sponge with warm water, sprinkle with soap, then gently rub the areas to be treated.