Surprisingly, products that I typically used (Crest, Listerine, and Arm & Hammer) aren't that bad! With that said, I did find certain chemicals, such as PEGs and Parabens, in each I'd rather not be exposed to twice a day. After a trial and error with several product replacement fails, these products are my top choice for all natural, clean alternatives that are just as good as their typical counterpart - if not better.
David's Premium Natural Toothpaste
Jason Powersmile Brightening Mouthwash
Zimba Teeth Whitening Strips