OPI ProSpa introduces the first & only professional skincare line that brings the quality & efficacy of facial skincare to premium nail care. OPI ProSpa Intensive Callus Smoothing Balm is a rich, emollient balm designed to soften and smooth rough, dry, and callused skin. Its concentrated formula with shea butter and cupuaçu butter deeply moisturizes and helps to restore skin's suppleness. Perfect for use on feet, hands, and cuticles, this balm provides intensive hydration and leaves skin feeling incredibly soft and revitalized.