Okay, maybe need a few more days for results

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.