First of all, the first point to tell you is that the whitening injection it is not bleaching powder, it can not let you play after, immediately from a yellow into white, for the whitening injection of high expectations of the people advised you or do not use. The second point, whitening injection it is a kind of maintenance products, like our women’s skin care products, not when you need it continuously every day to play, all of a sudden can keep a three to five years. This kind of idea is wrong! First of all, drugs into the body to have a digestive process, every day to play not only can not play a role but also a waste of products, the body will also cause a burden! Thirdly, the effect of whitening injection not only depends on the quality of the product, but also depends on the absorption of the individual. Just like we have a cold and take medicine, the same medicine some people eat two days on the good, some people eat no effect. But one thing is for sure, after the whitening injection the skin will become delicate and smooth, and will not feel dry. Fourth point, if you do not have the ability to whitening injection as a long-term maintenance products, then you have to play at least 2 sets of boxes can be. Because the first kit is to play the role of conditioning, the second kit is to improve the role of consolidation. So, if you don’t feel much improvement after the first kit, please stick to the second kit.