According to Dr.Wu's Webpage:
DR. WU HYDRATING SYSTEM Microinject Hydrating Mask with Hyaluronic Acid is infused with a high concentration of Intensive Hydrating Serum with Hyaluronic Acid that enables an instant rush of moisture. It preps skin for the application of makeup, conditions skin after cosmetic surgery and rescues dehydrated or allergic skin. After use, skin becomes dewy, supple and elastic.
The exclusive mask sheet is of high capacity and user-friendly cutting. It perfectly fits your face contour to fully release the benefits of the potent ingredients, leaving skin dewy and translucent.
how to use it
Use 2-3 times a week, day or night, after cleansing. Each package composed of three layers of which the middle layer is the active mask. Discard the plastic layer and place the middle active layer onto your face. After positioning, peel off the blue layer and wait for 10-15 minutes.
NASHA(Non-Animal Stabilized Hyaluronic Acid)
This mask rocks, seriously, when they say that it perfectly fits your face, they really know what they are saying. Before trying this, I had no idea that a mask could actually fit your face like skin.
The hydrating effect is amazing as well, all that I have to say about is "go and get it".