How to select your Toothpaste.


Pay attention when buying toothpaste, 
at the bottom of the toothpaste tube 
there is a color bar. And do you only know 
the original meaning of the color bar! 
Try to choose green and blue, there are four kinds:

Green: natural;
Blue : Natural + Medicine;
Red : Natural + Chemical composition;
Black : pure chemical.

please share to all......