Angelicin is primarily studied for its potential therapeutic applications, particularly in the field of dermatology and phototherapy. It is known for its phototoxic properties, which make it useful in the treatment of skin conditions like psoriasis and vitiligo. When exposed to ultraviolet (UV) light, angelicin interacts with DNA, inhibiting cell proliferation, which helps manage these skin disorders. Additionally, it is being explored for its role in cancer research, as it can induce apoptosis in certain cancer cells under UV irradiation. Its ability to modulate immune responses and its antioxidant properties also make it a candidate for further research in inflammatory and oxidative stress-related diseases.