100% buying this re-mineralizing paste. So if you brush it on your teeth and then don’t eat or drink anything for 30 minutes. And then you should wait 4 to 6 hours without eating anything that is hot or crunchy because it can take the paste off, but it is not bad at all. I’m actually wearing it right now and i don’t feel like a gross taste in my mouth or anything. It’s basically armor for your teeth! I don’t use fluoride on my teeth, so this is such a great option. It’s also great for people that have braces as well. It helps to prevent cavities and recession and any progression of cavities and recession. LTKBeauty LTKFamily LTKKids