Filler is a non-surgical cosmetic treatment used to add volume to hollow or sunken areas of the face, enhancing its shape and appearance. The treatment typically involves injecting absorbable substances, such as **hyaluronic acid**, into targeted areas to restore fullness, lift the skin, and improve facial contours. Fillers are used to treat deep wrinkles, enhance lip volume, shape the cheeks, and restore facial balance naturally. The procedure is performed under professional supervision using safe techniques to achieve natural and effective results without surgery.