After treatment, the black-faced doll can be used for 2-3 years, because the energy of the black-faced doll will stimulate the proliferation of collagen under the skin, and collagen will make many people choose to use the black-faced doll to whiten their skin, because its beauty method is not complicated, just apply some toner with beauty effect on the beauty part, and the black-faced doll can be wrinkle-removed by laser irradiation on the face, so this whitening method is deeply loved by everyone, but it is not very good for the black-faced doll that has not been tried yet. Come and listen to the introduction of experts from Jinhua Victoria Plastic Surgery Hospital! How long can the whitening effect of black-faced dolls last? Experts tell us that the black-faced doll is a non-invasive technology, and the treatment process will not cause any pain, nor will it produce adverse reactions and side effects. It has a very good effect on whitening, rejuvenating, anti-aging, narrowing pores and delaying aging, and it takes effect quickly. The treatment lasts for a long time, the effect is immediate, there is no risk, and it is easy to be accepted by beauty lovers. After a treatment, the skin problems on the face of the black-faced doll will be obviously alleviated. Plus 2-3 times of treatment, it will make the skin more tender, shiny and energetic. And this effect will last for a long time. If you take good care of it, you can have healthy and young skin for a long time. Black-faced dolls are the way to choose whitening skin, which is an important reason that directly affects the whitening effect. Only by mastering the knowledge of the relevant principles of black-faced dolls can we better realize the whitening and wrinkle-removing effect and keep the black-faced dolls longer.