ziliang_tan

I am sorry to tell you. Your information is very old. As an analytical technician, I have worked in the tootpaste analitical field for nine years. I want to update some information. The details are as follow:
1. Why don’t buy the toothpastes which manufacture date exceed one year? The expiration is still three years. Even if many chemical substances must take place some chemical change, but they still own quite strong fuctions for cleaning or sterilization.

2.Now, with our technics development, CaCO3 as an abrasive attrition is very prevalent which attrition value is already so low that we can ignore it. Why do the high price toothpase pitch higher. That’s because they are made of expensive raw materials, especially flavors.