The fear behind this question is paying for a course and then watching the same fullness come back. The answer depends on what happens to the cells Kybella treats.

What happens to the treated cells

Cleveland Clinic says Kybella causes a reaction in your fat cells, permanently destroying them and leading to results that last a long time.

It also says the destroyed fat cells do not regenerate, so the results can be long-lasting.

How firm that promise is

Cleveland Clinic words it as results that can be long-lasting, which is a softer claim than saying the chin can never change. The statement covers the cells that were destroyed, and a strong reason to expect the result to hold is still not a guarantee.

What to read next

The American Society for Dermatologic Surgery keeps a skin treatments page on Kybella. North Dallas Dermatology shares five things to know about Kybella. Cleveland Clinic describes the Kybella cosmetic injection procedure, and Healthline covers Kybella cost, side effects and what to expect.

The question to bring to your consult

Ask your Folsom provider what a follow-up visit looks like if you are unhappy with the shape months later, and what that visit costs. Durability is about the treated cells, so the useful check is how your provider handles anything beyond them.