Would a 1/2 syringe of Juvederm be enough for a natural, fuller look? (Photo)

You are young and have full lips so you may benefit from only a half of a syringe of Juvederm however you can evaluate the results at the time of treatment. If you desire more fullness to upper and lower lips I would recommend a full syringe. This filler should give you a very nice result for fuller lips. Please consult a board certified dermatologist or plastic surgeon experienced in aesthetic fillers. Best wishes.

How much to get is a common question.  If you want to take a conservative approach, 1/2 syringe should render a fuller look, but it will most likely be minimal to moderate.  The great thing about fillers is that if it is not enough, you can always add more.  Be aware that swelling is common after lip injections and that it is recommended that you wait two weeks after injection before assessing your final results.

Thank you for sharing your question and photograph.  If you are interested in augmenting your upper lip a half syringe should supply a nice, natural fullness.  If you are asking for both lips this may not be a sufficient amount.  Be sure to see an ASPS board certified plastic surgeon to discuss your desired look and have the best treatment recommendation made.