Chlorin E6 is widely used in photodynamic therapy (PDT) for treating various types of cancer. It acts as a photosensitizer, absorbing light at specific wavelengths to produce reactive oxygen species that destroy cancer cells. This makes it effective in targeting tumors while minimizing damage to surrounding healthy tissue. Additionally, its fluorescence properties when excited by specific light wavelengths enable its use in cancer diagnosis, allowing precise identification of tumor locations by medical professionals. It is also employed in dermatology for treating skin conditions like acne and psoriasis due to its ability to selectively target affected areas. Chlorin E6 is explored in antimicrobial applications, where it helps inactivate bacteria and viruses under light exposure. Its versatility in medical, diagnostic, and therapeutic fields highlights its potential in advancing treatments for complex diseases.