Yes, the same syringe can be used on the same patient to treat different areas. Your injector will help you decide how much product is appropriate to get you the results you want.
Dear elenaxxa,generally speaking, it is safe to use the same needle on multiple areas of the face. If you are considering a treatment, 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, MDCertified, American Board of Plastic SurgeryMember, American Society of Plastic SurgeryMember, American Society of Aesthetic Plastic Surgery