Photodynamic therapy (PDT) is a non-surgical treatment used to target sun-damaged skin and early skin cancers such as actinic keratoses. At ISO Skin Cancer & Laser Clinic, PDT is performed by Dr Tina Fang and Dr Jack Fu using either LED or IPL light sources to activate a special light-sensitive cream applied to the skin. The procedure takes around 3 hours, involves mild discomfort (around 4/10), and has a recovery time of approximately 5 days.