There were no side effects. When I first went to the consultation, they gave me 1st, 2nd, and 3rd steps from the thinnest, but after receiving my mother's recommendation, I regretted doing the 1st step . Now my brother and I both have almost dry double eyelids?? Hahahaha It really doesn't look like surgery and it's thin. It's sad that it's so thin... ^^ I don't know if it's pretty or not because it's really just a piece of furniture. If anyone is worried about surgery here, please leave a comment .