Did you know that dry skin often lacks natural Urea that would normally keep our skin soft and hydrated. Urea re-hydrates the Stratum Corneum and its loss means the skin loses its water binding function allowing the skin to dry and crack. Dry skin on the feet can not only produce nasty painful cracks but allow entry of bacteria and fungi causing irritation. Our skin contains three natural moisturising factors that are produced during the process of karatinisation, they are Amino acids, Lactic acid and Urea. (Keratinisation is the process where dead cells are shed by the epidermis, this takes approximately 28 days) The Urea added to foot creams allow the other products in the preparation to act more effectively eg Lanolin.