What is the purpose of a dermal filler?

The purpose of a dermal filler is to be injected into the skin to restore volume and smooth out wrinkles, making option A the accurate choice. Dermal fillers are designed to address signs of aging by filling in areas that have lost volume due to age, sun exposure, or other factors. They can effectively enhance facial contours, diminish the appearance of fine lines, and restore a more youthful look to the face.

The other options do not align with the primary functions of a dermal filler. A topical cream is intended for moisturizing the skin, which does not involve injection or the restoration of volume, therefore cannot be considered a filler. Similarly, tools for exfoliating the skin work on the skin's surface to remove dead skin cells and improve texture, rather than filling in wrinkles or adding volume beneath the skin. Lastly, a type of facial that promotes circulation does not relate to the filling or plumping function of dermal fillers but focuses on improving blood flow and skin health through various techniques and products applied to the skin’s surface.