It is universally accepted that as we age, we lose volume from the fat pockets of our face. The hollowing or depressions are mostly evident under the eye, mid cheek, temples and in the areas where folds are formed such as nasolabial folds, marionette lines and prejowl areas. Restoration of volume in these areas has a rejuvenating effect on face. Fillers, as the name suggests, are injectables that replace volume, where volume is lost. Fillers can be synthetic or natural. A natural filler is our own body fat. A synthetic filler is Hyaluronic acid.
Hyaluronic acid or NASHA ( Non Animal Stabilised Hyaluronic acid ) is a popular synthetic injectable filler marketed by many renowned companies with various trade names. These are completely inert products that are cleared by our body slowly by hydrolysis (converting to water). They are completely harmless with no side effects. Injecting these fillers is quite like giving an injection. The filler will fill the area restoring volume and hydrating the tissues. The longevity of the filler will depend on the cross linking or consistency. Some fillers are cleared by our body in six to eight months while some last up to two years.
Various companies have tried to increase its longevity or lifting capacity by adding various elements such as Hydroxy appatite, or collagen. However, there is an increase in complications such as granulomas or nodularity, infections etc. Hence, it is wise to ask your doctor which type of filler is going to be used and whether it has any risks before agreeing to have an injection done.