An innovative treatment serum, PCA SKIN Hydrating Serum (pHaze 43), capable of increasing intracellular moisture while improving the overall function of the skin's natural moisturizing factor (NMF). Hyaluronic acid, sodium PCA and vitamin B-5 attract water moisture into the upper layers of the skin, improving appearance and elasticity.  Urea and glycerin effectively travel through the skin cells' aquaporins, or water channels, increasing intracellular moisture.  An excellent addition to normal and dry skin regimens and may also be used as a substitute for thicker moisturizers for oily skin types.