may leave stains on your teeth!!!
I was happy with the product until I saw the warning on the back. It may leave stains on your teeth!!! I have not seen this kind of warning on other brand mouthwash which means this product is not mature. Those stians have not happened to me and may harmless，but who want to buy the product with a potential problem. It may be removed by a dentist，but who gonna pay for this ？
By VIVO on June 1, 2021