Easydew DW-EGF Melatoning Oneday Ampoule Booster Shot 20ml - Professional Brightening and Spot CareIt is a high concentration ampoule designed to target multiple skin concerns with optimized active ingredients, including high purity DW EGF. This ampoule features a micro vibration applicator: when the silver handle touches the skin after applying the product, it automatically generates approximately 200 micro vibrations per second (12,000 per minute). This technology enhances the absorption of active ingredients by more than twice compared to manual