Urea causes hard dry skin cells to "unpack" and expose their water binding sites, thus enabling the cell to absorb and retain additional moisture. This action is also known as hydrotopic solubilization and several independent clinical investigations and studies prove that it works. Unfortunately, urea on its own does not feel like a good moisturizing lotion. It is chemically unstable and actually leaves the skin feeling dry to the touch. Dermal Therapy‘s formulas are both effective and cosmetically elegant. The pharmacists and scientists who developed Dermal Therapy use a special stabilized urea formulation that is balanced and blended with other moisturizing ingredients including silk amino acids to make your skin feel silky smooth. The results are efficacious moisturizers that actively replenish moisture to the lowest skin depths and leave the skin looking and feeling wonderful. It’s a little like taking the plastic wrapper off a sponge so it can absorb better!