Dermal fillers are gel-like substances that are injected under the skin to restore lost volume, improve lines and wrinkles, and lift sagging tissues. Common active ingredients in dermal fillers include hyaluronic acid, calcium hydroxylapatite, poly-L-lactic acid, polymethyl methacrylate, and autologous fat. Hyaluronic acid is the most widely used dermal filler and works by increasing water retention on the skin's surface, maintaining volume. Calcium hydroxylapatite is a mineral-like compound found naturally in our bones and is thicker than hyaluronic acid fillers, usually lasting about 12 months.
Poly-L-lactic acid works as a kind of scaffold to help collagen fibers grow, with effects occurring over time as collagen rebuilds. Polymethyl methacrylate is a synthetic material that is not absorbed by the body and can last up to 5 years. Autologous fat injections are an alternative to dermal fillers for those who want a natural, long-lasting filling. During this procedure, fat is removed from the hips, buttocks, or stomach using liposuction and then purified and injected into the face. The safe use of dermal fillers in combination with Botox and other treatments has not been evaluated in clinical studies.
People should be tested for allergies before receiving dermal fillers made with certain materials, especially animal-derived materials such as collagen. To help ensure optimal results and safety during dermal filler treatment, make sure you always choose a board-certified facial aesthetic surgeon or a trained medical esthetician working under your supervision. The most serious risk associated with dermal fillers is accidental injection into a blood vessel. Inadvertent injection into blood vessels can cause serious complications such as blindness or stroke. As reported in clinical trials, the effects of most FDA-approved dermal fillers are temporary because they are made of materials that the body eventually breaks down and absorbs. Dermal fillers have gained popularity for their ability to quickly and easily restore lost volume without downtime.
On average, dermal fillers stay under the skin for about 6 to 12 months, depending on their ingredients and how they were formulated. Individuals should discuss the provider's experience and training in dermal fillers and Botox before making a decision.
