I used this sponge a couple times this week and purchasing two a week ago for both my mother and I. We both loved the how it made our faces feel as well as the results. Unfortunately, maybe I misunderstood the store consultants directions, but, after only a couple uses mine turned moldy. I checked my mothers and hers did not. I hung it to dry after wringing it out and I have also stored mine on top of the protective carrying case. After a couple uses it ended up with black spots on it that looks like mould. My mother put it back in the container after each use, but it looks brand new and perfectly fine. I have purchased so many products from Saje in the past couple years, this has been the only product I've been disappointed in. I can attach pictures.