So I do use charcoal for face cleansing, like the soap, scrubs etc., They usually produce clearer and smoother skin after each use. I like the idea of this sponge. I have used it for over a week now. I honestly haven't seen many changes. Maybe smoother skin? However, it was pretty smooth to begin with. I am wondering if it takes more like two or three weeks to see results? I will update this after a few more weeks of use.