What are dermal fillers and how do they work?

Dermal fillers are injectable substances used to restore lost volume, smooth wrinkles, and enhance facial features. They work by plumping up specific areas of your face, like smile lines, laugh lines, or under-eye hollows. Different types of fillers are made from various materials, such as hyaluronic acid (a natural substance found in your body) or calcium hydroxylapatite. Hyaluronic acid fillers are temporary and typically last 6-18 months, while calcium hydroxylapatite fillers can last up to two years.