Dermal fillers vary from biologic to synthetic materials, and from absorbable to nonabsorbable compounds. In general, dermal fillers are volume-producing agents that are approved for injection into the dermal layers for the correction of moderate-to-severe wrinkles, contour deficiencies, folds, depressions, and to increase volume in the hands.
Dermal fillers include human fat and medical device implants approved for medical use by the Food and Drug Administration (FDA). Autologous fat transfer is the removal of fat from one part of the body and transferring it somewhere else on the body. The FDA has approved a multitude of injectable dermal fillers and volume-producing agents for treatment localized to the face in order to create a smoother appearance. The agents include, but are not limited to, autologous cellular product (azficel-T, laVív), human collagen (CosmoDerm, CosmoPlast), hyaluronic acid (Restylane, Restylane L, Juvederm, Captique, Belotero Balance, Prevelle Silk, Hydrelle), bovine collagen (Zyplast, Zyderm), human collagen from human tissue (Cymetra), microscopic plastic beads and polymethyl methacrylate [PMMA] microsphere-enhanced bovine collagen (Artefill), calcium hydroxylapatite [CaHA] (Radiesse®), and Poly-L-Lactic Acid (PLLA) (Sculptra Aesthetic). In addition, Restylane and Restylane L Injectable Gels are approved for lip augmentation in those over the age of 21 years.
The use of injectable dermal fillers has aesthetic applications. For example, these products provide volume for wrinkles around the eyes, cheeks, lips, and neck, thereby improving appearance. Cosmetic services are those provided to improve an individual's physical appearance, from which no significant improvement in physiological function can be expected. Emotional and/or psychological improvement alone does not constitute improvement in physiological function.