Patients in Wales could be among the first in the world to receive pioneering treatment which uses human cells to eliminate facial scarring.
Swansea University's £2.5m study will use the cells and plant-based materials to 3D-print nose and ear cartilage.
If successful, it could be used in the future to treat people born without body parts or who have facial scarring because of burns, trauma or cancer.
Victims of scarring say the development could be life-changing.
Six-year-old Elizabeth visited the world-leading research programme in Swansea alongside Sophie, Countess of Wessex, who is a patron of the Scar Free Foundation.