Xerolys 50 reduces the thickness of feet calluses or localized hyperkeratoses (hands, elbows, nails, scalp The association of 50% Urodium (urea + sodium chloride): patented active ingredient that improves the hydrating power of Urea, glycolic acid and lactic acid allows a more effective action against thickening of the epidermis. Xerolys 50 quickly brings comfort, flexibility and soothing to the skin. Xerolys 50 also provides intense and lasting hydration to the skin.