Most bags under the eyes are removed for a long time, even every day, and the knife can only guarantee 3-5 years to remove bags under the eyes. Therefore, eye cream is the cheapest for the first time, the first time 1.50 yuan. In fact, eye cream is the most expensive, with a total cost of1.5-20 thousand in 30 years. Chemical substances may be harmful to human body or have allergic reactions. The first cost of incision 1.500 yuan, once every 3-5 years, and the total cost of 30 years is 9000- 1.500 yuan. The cost of radio frequency method and laser method is similar to that of incision method, and the first cost of ultrasonic method is 4300 yuan. Because the ultrasonic method can remove the bags under the eyes for life without eye cream, there will be no future cost after 30 years. Google search: ultrasonic method to remove bags under the eyes of official website.