Juvéderm · Restylane · Belotero · Revanesse

Hyaluronic acid is a water-binding molecule that occurs naturally in skin and other tissues. In these fillers it is modified and cross-linked into a stable gel so that it lasts longer after injection than the body's own hyaluronic acid, which breaks down quickly. The gel is gradually broken down over time by natural processes.

The effect is temporary and gradually fades as the gel is broken down naturally, so maintenance treatments are needed to sustain a result. How long it lasts varies with the product, the area treated, the amount used and the individual. Your physician can give you a more specific expectation for your situation.

One practical feature of hyaluronic acid fillers is that they can often be broken down with an enzyme called hyaluronidase if an adjustment is needed or if a complication occurs. This offers a degree of reversibility, though the decision and the outcome depend on the specific situation. It is managed by the physician treating you: Dr. Gidon Frame, Dr. Sarina Govindasamy, or Dr. Teri Fisher.

Fillers add volume or support to areas affected by volume loss or to smooth certain folds, whereas botulinum toxin temporarily relaxes muscles to soften lines caused by movement. They address different concerns and are sometimes used together. A clinical assessment can clarify which, if either, suits your goals.

Most effects are mild and temporary, such as swelling or bruising. A rare but serious risk is accidental injection into or compression of a blood vessel, which can affect blood flow and, very rarely, the skin or vision. Being treated by a physician who knows facial anatomy, and discussing risks before treatment, are important parts of reducing and managing that risk.