There are a variety of FDA approved filler products that cosmetic surgeons use. In general, fillers are categorized by the substance they are made from. A note for your safety: always make sure that you are receiving FDA approved and brand name fillers.
Hyaluronic Acid (HA)
Hyaluronic acid is a naturally occurring substance that is already found in your skin. It helps keep skin plump and hydrated. HA fillers are typically soft and gel-like. The results are temporary, lasting 6 to 12 months or longer before the body gradually and naturally absorbs the particles. Most HA fillers are infused with lidocaine to help minimize discomfort during and after treatment. FDA approved HA fillers include:
- Juvéderm products: Juvéderm XC, VOLUMA, VOLBELLA, VOLLURE
- Restylane products: Restylane, Restylane Silk, Restylane Lyft, Restylane Refyne, Restylane Defyne, Restylane Kysse, Restylane Contour
- Belotero Balance
- Revanesse Versa
- The RHA collection: RHA 2, RHA 3, and RHA 4
Calcium Hydroxylapatite (CaHA)
Calcium hydroxylapatite is also a naturally occurring substance, found primarily in our bones. When used in a filler, the calcium particles are nearly microscopic and suspended in a smooth gel. The consistency of a CaHA filler is typically thicker than that of a hyaluronic acid filler and typically last longer as well, about 12 months for most patients. Calcium hydroxylapatite is also reported to help stimulate natural collagen production, and it is typically used for deeper lines and wrinkles. FDA approved CaHA fillers include Radiesse®.
Poly-L-lactic Acid
Poly-L-lactic acid is a biocompatible (meaning it is safe to use in the body), biodegradable synthetic substance. It has been used for many years in medical devices, such as dissolvable stitches. Poly-L-lactic acid products are technically classified as “collagen stimulators,” as their main mechanism to smooth fine lines is by helping your skin rebuild natural collagen—the filler gel itself dissipates a few days after treatment. Poly-L-lactic acid is typically used to treat deeper facial wrinkles, and results can last more than 2 years. FDA approved Poly-L-lactic acid fillers include Sculptra® Aesthetic.