helpful [SEP] 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 itthis 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 effectivebesides that it helps the ingredients of your facial mask in place because it has a better define shape and the ear loopsi 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