Dermal fillers, sometimes called soft tissue fillers, are substances designed to be injected beneath the surface of the skin to add volume and fullness.
Substances used in dermal fillers include:
- Calcium hydroxylapatite, which is a mineral-like compound found in bones.
- Hyaluronic acid, which is found in some fluids and tissues in the body that add plumpness to the skin.
- Polyalkylimide, a transparent gel that is compatible with the body.
- Polylactic acid, which stimulates the skin to make more collagen.
- Polymethyl-methacrylate microspheres (PMMA), a semi-permanent filler.