When it comes to injection of cosmetic needles, most of the concerns of the general public come from whether the facial expression will be stiff after injection. Pan Yingzi, a 65-year-old actress from Taiwan Province Province, was praised as "the myth of youth" by the media for her excellent maintenance technology and young appearance. Although there are no wrinkles, the skin is smooth and full, but the facial expression is stiff, it is not excluded to inject too many beauty needles. For wrinkle removal needles, eye wrinkles will not disappear completely. The doctor will make an implant with an appropriate concentration ratio according to everyone's situation, and then remove 80%-90% of wrinkles. This will reduce the excessive tension on the face and be more natural. It can be seen that the pursuit of 100% perfection is not necessarily a good thing. Not once and for all, most projects, including hyaluronic acid and botulinum toxin, are not permanently effective, and the maintenance effect may be between a few months and two years, while the shaping project can last for one to two years. This is related to the difference between plastic parts and personal physique. Although it can't be used for a lifetime, on the other hand, substances that can be naturally metabolized in the human body will be safer. On the bright side, if the cosmetic effect is not ideal, you can do it again after natural failure.