In practical application, general doctors will combine monophasic and biphasic treatments for different parts of the face. Recently, the doctor recommended GER hyaluronic acid from Korea, which combines monophasic and biphasic. A piece of hyaluronic acid contains two characteristics, which can be molded and filled. I was rather skeptical at the time. After all, it's the first time I've heard of such a product on the market. I tried it once with trepidation and the effect was quite good. Everyone thinks my face is delicate, but I don't see anything else.