I may never know. - UPDATED= I LOVE THIS THING
I loved the feel of the sponge, but felt it was a little small.  I sort of felt like I was washing with a kid sized sponge.  I didn't really get to notice if it made a difference in my skin because the sponge got moldy very quickly.  I hung it to dry after every shower but i live at the beach and things just go moldy here, I don't use any other kind of sponge even to wash dishes, because mold is so quick to grow here.  I'm sad I didn't get to use it longer because it did feel good.<br /><br />UPDATE - First kudos to the company for contacting me when I posted my feedback. They sent me a new sponge and assured me that they too live in a humid climate and have not had this issue. So I don't know if I just got a bad one or I didn't put it somewhere to adequately dry or what (I'll be totally honest I'm wondering if it wasn't mold and just discoloration from product?)  OK so I've been using my new one for a month now and a couple of things.  One I find I don't have as many black heads now or the red bumps I get on my jawline.  I was traveling for two weeks and I left my good soap in a hotel room and for the last 5 days of the trip didn't use any soap, just the sponge and water... my skin still looked great.  With great customer service and an inexpensive solution that keeps my skin clear they have created a loyal customer in me!! THANK YOU for letting me try it again, I would have been seriously missing out.
Rating: 5 stars