Fillers are a broad category of injectable products designed to add volume, shape, and balance to the face and other treated areas. In the world of aesthetics, fillers encompass a range of formulations, including hyaluronic acid-based options, calcium hydroxylapatite, poly-L-lactic acid, and polymethyl methacrylate. Each filler family has its own look, feel, and duration, and they’re chosen to address specific contours or lines. When you read about fillers, you’ll see different product names tied to the same goal: enhancing facial structure with controlled volume. How fillers work is grounded in how they interact with the treated area. Fillers sit just beneath the skin to occupy space and provide support where volume has diminished, delivering an immediate lift or smoothing effect. The result can refine contours, soften lines, and restore a more balanced silhouette. Because there are multiple filler types, the way a filler behaves—how much lift it provides, how natural it feels, and how long the result lasts—depends on the product chosen and the area being treated. Choosing the right treatment starts with your goals for the fillers. Consider where you’d like more fullness, which lines you want softened, and the look you’re aiming for. Have a detailed discussion with a clinician experienced with fillers about the available filler types, the expected results, and the typical duration. Factor in the area being treated, the amount of filler that might be used, and the costs over time. Ask about the clinician’s experience with fillers, the consent process, and what a plan for follow-up or touch-ups might look like. Safety insights and FAQs about fillers help you make informed decisions. Work with a licensed clinician who conducts a proper assessment and reviews your medical history. Common potential side effects include temporary redness, swelling, bruising, or tenderness in the treated area, which typically resolve on their own. FAQs: What are fillers? They are injectable products used to add volume and shape. Are fillers permanent? Most fillers are temporary, with duration varying by product and area. Do fillers hurt? Some temporary discomfort is possible, but clinicians often use local anesthesia or soothing techniques. How long do fillers last? Results usually last months to a year or more, depending on the product and area treated. Who should perform fillers? A qualified, licensed healthcare professional with specific experience in fillers.