It reduces the cavitie's "rage" which makes them slower and reduces the ranges they notice the player. I think I set the price to high but ideally if the game was too difficult for you, you could go to the dentist and get whitening to make it easier. But I think the floss is actually a little too good that you don't need the whitening. Also cleaning might a better name for it. Luckily a lot of these values are easily manipulated so I will give the player more speed as I also thought it was a little too slow (but like I had a dash planned but ran out of time as this was for a game jam). There is a lot of little things here that I would be able to iron out if I had more time to get feedback from people. But I appreciate your feedback, thanks for playing!