A booster for your face... that should do this good. I have the potty completely empty now and don't really see a difference. It smears and smells good, though, but I don't feel like it does anything for me.
What I really hate is that there's a layer left behind in the potty that you can't handle. The pipette doesn't get that far. So a shame!
All in all not a must. Aurelia's serum remains my favorite.