Dermal fillers are injectable products that are used to add volume, smooth out wrinkles, and improve the overall appearance of the skin. They are typically made from substances such as hyaluronic acid, calcium hydroxylapatite, or poly-L-lactic acid, and are injected beneath the skin's surface to plump up areas that have lost volume or to fill in lines and wrinkles.

Dermal fillers are commonly used to treat areas such as the cheeks, lips, and under-eye area, as well as to address facial asymmetry and scarring. The results of dermal fillers can last for several months to a year or more, depending on the type of filler used and the area treated.