SkinCeuticals Hydrating B5 Masque contains high concentrations of hyaluronic acid (1%) to replenish critical moisture levels depleted in dehydrated and stressed skin. This deeply hydrating masque is enriched with vitamin B5 to aid the skin in restoring a healthy appearance. Ideal for all skin types, Hydrating B5 Masque includes a unique complex containing constituents of the skin's natural moisturizing factor (NMF) to help restore skin's optimal moisture balance and maintain a radiant, healthy appearance.