1. TEMPORARY FILLERS:
Hyaluronic acid-based fillers – A naturally occurring substance in the skin and primarily used to promote fullness and volume.
2. SEMI-PERMANENT FILLERS
Calcium Hydroxylapatite – Heavier and denser than hyaluronic acid, this filler is injected deeper, underneath the skin. Since the material is found in bone it does not usually cause immune or allergic responses.