Review (4/5): Helpful
I had my doubts about the benefits of wearing this mask on top of the other facial mask. So I was greatly surprise to see the difference when using it from not using it.
This mask keeps the temperature between your mask and your skin. I think this increases the exposure of the ingredients in your mask and your skin; thus making the facial mask more effective.
Besides that, it helps the ingredients of your facial mask "in place" because it has a better define shape and the ear-loops.
I took one star from the max because the ear-loop is kind of short so after a few minutes, it feels very uncomfortable. I have to lay down, remove them for a while, and put them back. In this way, the back of my ears do not hurt so much.