Hydration, Skin-Replenishing, Moisturizer

Good
HYDROXYETHYL UREA

A synthetic ingredient that serves to hydrate skin and help maintain a normal moisture balance in skinŠ—Ès uppermost layers.References for this information:
Dermatology and Therapy, March 2015, pages 1-8
Biochimica et Biophysica acta, November 2013, pages 2,470-2,478
Dermatology Online Journal, November 2013, pages 1-14
Journal of Colloid and Interface Science, October 2011, pages 1-33