效果真的好明显啊～不过听说要坚持用下去才行，不然很难保持～～
同意，什么事都要坚持的吧，减肥成功后也是要坚持的啊
看到管网上说：
It is safe to use Smile Whitening System up to 4 times per year to achieve the level of whiteness that you desire. In between, use GOSMILE Touch Up ampoules regularly to keep your smile white, especially if you smoke or drink tea, coffee or red wine.
It is safe to use Smile Whitening System up to 4 times per year to achieve the level of whiteness that you desire. In between, use GOSMILE Touch Up ampoules regularly to keep your smile white, especially if you smoke or drink tea, coffee or red wine.
Huasing Association 1999 - 2013