First thing in my mind: mouthwash is just a liquid to make mouth cleaner and fresher.
BUT, I was wrong.
There are few types of mouthwash to be chosen follow our needs.
I spend almost 1 month to testing whole series of Guardian mouthwash.
我的第一次就给了Guardian一系列的漱口水。
漱口水给我第一个印象就是让牙齿更清洁,口腔更清新的水。
不过,我错了。
原来漱口水有分类的。
我花了近1个月尝试完Guardian 4种漱口水。其实要更有效应该持续性使用。