Facial sagging and reduced skin elasticity that appear with age are considered closely linked to the decline of collagen in the dermal layer. While conventional PCL and PLLA microparticle-based formulations have been used to stimulate collagen production, concerns have remained over potential side effects such as nodules and granulomas. GOURI is a liquid-form PCL product developed without microparticles, characterized by its high diffusion capacity and ability to spread evenly across the face. Dr. Donghee Kim of Forever Clinic Myeongdong Global said, “GOURI is a practical option that may help improve skin texture, elasticity, and facial contours without the burden of sleep anesthesia.”