Perioral rejuvenation restores the volume of the lips with injectable fillers or with fat transfer (lipofilling). Techniques to reduce or eliminate wrinkles include laser facial resurfacing and chemical peels. One can distinguish between ablative (removing a thin layer of wrinkled skin) and non-ablative procedures. Ablative procedures include CO2 laser, Erbium-YAG laser and chemical or mechanical peels and some non-ablative procedures are intense pulsed light (IPL) and radio frequency techniques which typically require several sessions to achieve the desired result. People with hypersensitivity issues, and skin and autoimmune disorders may be assessed further by the surgeon. Preparation may include a detailed history of medical issues, medication history, and physical examination.