CoolSculpt is a non-invasive procedure that uses controlled cooling to eliminate stubborn fat from the sides and lower back. It works by freezing and killing targeted fat cells, which are then naturally eliminated from the body, with some patients experiencing temporary redness or bruising. The document provides before and after photos of CoolSculpt results and lists other aesthetic treatments offered by Dr. Leslie Gerstman at her practice on the Upper East Side in New York City such as Botox, dermal fillers, and treatments for conditions like acne and sun damage.