Dermal fillers are hyaluronic acid based injections that are introduced into certain areas of the face to replenish volume and give you a more youthful look. Hyaluronic acid is a natural component of connective tissue. It provides firmness and elasticity. Dermal fillers can last for about 12 months and sometimes over a year. The areas typically treated are lips, chin, cheeks, marionette lines, tear troughs (under the eyes) and nasolabial folds. The product Dr. Santos currently uses is Restylne or Revanesse. This fillers has an excellent safety profile and generate the best results. Dr. Santos has a specific needling technique that makes the injections relatively painless and minimizes bruises. The cost for dermal fillers are $500 per syringe or $250 for half a syringe.