Bests & Worsts Reviews from Amazon

This stuff works really well! I noticed whiter teeth after the first use. I've convinced friends with yellower teeth than mine to try and the results are dramatic! I use it a few times a week and think it works really well! As others have said, this stuff is a MESS. Tips I've found after several uses are: -Use it in the shower. You can rinse the shower when you're done. -Make sure you brush with your mouth closed the entire time. It seems obvious but makes a difference. -Designate a toothbrush to this stuff. It will turn your brush black, no matter how many times you rinse. -Focus on the front teeth and don't worry about your molars like you would with normal paste. No one cares if your molars are white. -Spit into the sink THEN turn on the water. If you spit with the water running, it'll spray black everywhere. -After you spit the first time, keep brushing. I usually brush until I spit clear. -Brush gently. My friend brushed too hard and got charcoal in her gums them had a bum-looking tooth all day. -Floss afterwards or use mouthwash. It'll help get all the tiny particles between your teeth out. The before and after picture are after ONE time using it.