This is my favorite mask of all time! It works miracles and you don't have to leave it on for hours. I use this once or twice a week (or if I'm having serious skin issues) and it keeps acne and redness in check. It's fast, easy, and really work for me. Its great to use in the shower, by the time your done washing your hair, etc, the mask has done it's job. I then usually combine it with a gritty exfoliating face wash for an extra cleansing step. I recommend this to anyone with problem skin such as acne or redness. It's gentle enough for those with sensitive skin as well!