I purchased this mask to compliment the NB -Ceutical products I recently started using. I bought it because it claims to decongest, soothe, hydrate and soften. I really enjoyed using the mask, it's a gel that you leave on for ten minutes. I could feel something working while it was on, but it never irritated my sensitive skin. It left my skin feeling hydrated and refreshed. As for the decongesting, well, I can't be sure of that. It must have worked as my skin feels less clogged, not as many little breakouts as I usually get. It was probably the hydrogen peroxide that did some purifying. I will use it again and update after a few more treatments. I admit at this point in time I am too lazy to do masks of any kind, so I will make an effort to use this mask at least once a week and see what other benefits it has. Overall it is a nice product and a relative bargain compared to many NB products!