Fillers are cosmetic substances injected into the skin to enhance facial features, reduce wrinkles, and restore volume. Commonly made from materials like hyaluronic acid, they help to plump areas such as the lips, cheeks, and under the eyes. The effects are temporary, typically lasting from several months to a year, depending on the type of filler used. These treatments are popular for their minimally invasive nature and quick recovery time. While fillers can provide immediate results, it is essential to consult with a qualified professional to discuss potential risks and ensure the desired outcome.