Hi Hele,Voluma (Juvederm) is a revolutionary injectable filler that was just FDA approved for adding volume to the cheeks, lasting up to 2 years after a single injection session. We have been amazed by the natural and immediate rejuvenation of the cheeks, the under eye tear trough hollow, nasolabial folds, and even cheek lines, jowls, and marionettes in some patients. The effect of Voluma is immediately seen. There can be some additional swelling and bruising.If you do not see the results of your Voluma treatment then either not enough was used, or it was injected in an improper location. Voluma lasts for up to two years, it is therefore priced higher by the manufacturer (Allergan Inc., Irvine,CA) and costs more than other fillers. Patients and their Voluma physicians must discuss the amount of Voluma estimated to be needed for best results. Using too little Voluma is like partially filling a balloon with air; you may not notice it until enough is used. Our training as Voluma de Maio Master Injection Technique physicians aids our pre-treatment facial analysis and estimate the amount needed for realistic patient expectations. Voluma is not a commodity, rather the results are dependent on how it is used by the individual physician on each unique face. The most important aspect of any facial aesthetic treatment is choosing your physician most carefully based on their artistic vision, knowledge of facial anatomy, skill, and experience to insure your best natural cosmetic results in the safest manner. See the below web reference and watch the video for more Voluma information. Good luck and be well.Dr. P