For me, it’s an electric toothbrush. It doesn’t matter if you go with Sonicare or Oral-B, once you start using an electric toothbrush, regular toothbrushes don’t ever feel like they clean your teeth properly. The smooth plaque-free top layer of your teeth that you can feel after using an electric toothbrush can’t be replicated with a regular toothbrush.
Whats wrong with aluminium, like 80 of the earth’s surface is basically some aluminium oxid
Iirc there was something about aluminium in deodorant sprays a while ago that turned out to be not that bad, but what’s wrong with solid sheets of the stuff?