The PDT device for skin cancer prevention is an innovative device integrated with photodynamic therapy to treat skin cancer. The device uses selective wavelengths to stimulate the photosensitizers in the skin, which in turn activates the malignant cells and destroys them while leaving the healthy tissues untouched. This technique is efficient and greatly reduces the possibility of scarring tissues and other side effects which are common with older corrective techniques. With the growing global concern regarding skin cancer, our PDT device provides hope as a reliable option not just for self-care, but also for medical practitioners.