What is the best procedure for tightening skin under eyes? i have extremely sensitive skin so i'm worried about scarring.

Plastic surgery: is commonly done for this. Removal of extra skin or paradoxically putting chemical implants in. I do not know why diagnosis isn't done on them since: fat deposit changes, FLUID, wrinkling can do this but have very very different physiology and presumably different best treatments. But first, excercize a heck of a lot til sweating profusely and see if the bags disappear. Then, it's lymphatic fluid