Resurf.a.stic is the original, one-step innovation that combines hydration and long-lasting, skin-enriching treatment with professional-quality microdermabrasion. Medical-grade, diamond-shaped crystals that are equally efficient on all sides are embedded in a unique stick form, making resurf.a.stic highly effective, easier, faster and more sanitary than messy creams, gels or complex mechanical devices. Results are instant. resurf.a.stic callus is specially formulated to soften toughened areas of skin commonly found under feet, on knees and elbows and the palms of our hands. Larger crystals are used to deliver a more even and effective result. Moisturizers and conditioner leave these rough spots feeling and looking smoother.