It depends on your goals. Fillers come in syringes and most syringes contain 1ml of product. I would start with 1 syringe and then add more if desired. Make sure you find an experienced physician injector and communicate your goals with them clearly. Best wishes.
Dear Apple2324,it depends on your anatomy and desired results. In most cases one syringe of Juvederm is enough for lip augmentation. I would suggest you to consult a board-certified plastic surgeon. Only after a thorough examination you will get more information and recommendations.Daniel Barrett, MD, MHA, MS Certified, American Board of Plastic Surgery Member, Am. Society of Plastic Surgery