It is best to do it in adulthood, because people develop very rapidly after puberty. Many boys and girls grow very fast in height, but their faces develop relatively slowly. This is to see that although they are close to adults in height, their faces are still children. After adulthood, facial development is basically stereotyped, and it is more appropriate to make double eyelids during this period.

There are many methods for double eyelids, the most common ones are catgut embedding, Korean minimally invasive surgery and incision. The operation method should be determined according to the thickness of the upper eyelid, which method is not the best, and the one that suits you is the best. Different regions/hospitals/doctors/surgical methods will affect the price. It is usually recommended to go to a regular hospital to find an experienced and trustworthy surgeon to communicate.