Water-light needle is an entry-level project that acts on leather. For example, photoelectric projects, such as hot Maggie and ultrasonic scalpel, all work under the dermis.
And like the girl needle, macromolecular hyaluronic acid even acts on periosteum and deep fascia.
As for which brand to use, Seils or Yan Jia, you can consult a professional doctor. Shuiguangzhen belongs to the entry-level project of medical beauty, with low operation difficulty and low risk, which is more easily accepted by consumers.