control group:Three months after randomization, you can choose whether to inject or not

Prospective, multicenter, randomized, "no treatment" parallel controlled clinical trial to evaluate the safety and effectiveness of modified sodium hyaluronate gel for injection in the correction of infraorbital depression

A multicenter, randomized, ' no-treatment ' parallel controlled study to evaluate the efficacy and safety of cross-linked sodium hyaluronate gel for injection in lip filling.