Oh So Heavenly Footspa Sole Therapy Heel & Callus Balm 100 ml is a hardworking heel balm which is specifically formulated with 40% skin softening ingredients; a marine minerals complex, shea butter and 25% urea to soften and intensely hydrate hard, dry and cracked heels. Used regularly, this balm should help to prevent hard skin and calluses from forming. Feel good from the feet up and enjoy softer heels after just 7 days.