Using dermal fillers to rejuvenate the face

When I started practicing dermatology 20 years ago there was only one dermal filler, bovine collagen.  It was used to enhance the lips and to fill the nasolabial fold, and occasionally to fill the frown line between the eyebrows.  How times have changed!  We have many types of fillers and the way we use them has also changed.  The emphasis is now on reinflating the mid-face.  Think of a babies chubby round cheeks and look at an aging face to understand what has been lost.  Without normal volume over the cheek bones, the mid-face flattens and the cheek skin sags.  This creates a trough under the eyelid, a roll of fat and skin above the nasolabial fold (which deepens and accentuates that fold), and creates a jowl of skin at the jawline.  By restoring that normal mid-face volume the cheek skin lifts and a more younger, natural mid-face is recreated.  I like Radiesse and Juvederm Ultra in this location for their durability.  Radiesse lasts the longest but Juvederm Ultra is softer; both are great.  I would be interested in hearing other peoples thoughts on this and if they are happy with their results.