Kybella injections in Portland, OR. Dr. Heather Friedman uses kybella injections to address submental fullness AKA the double chin and jowling. Kybella is a synthetic form of deoxycholic acid, a molecule that is responsible for breaking down fat. Once your aesthetic goal is reached, you can expect that no further treatment is required. Learn more about Kybella injections and how Dr. Heather Friedman integrates this treatment into her NE Portland practice.