Forsythoside I is widely used in the pharmaceutical and cosmetic industries due to its strong biological activities. It exhibits significant anti-inflammatory and antioxidant properties, making it valuable in formulations aimed at treating skin irritation, redness, and aging. In traditional medicine preparations, it supports immune function and is often included in herbal remedies for respiratory infections due to its antiviral effects. Its ability to inhibit pro-inflammatory cytokines enhances its role in developing treatments for inflammatory conditions. Additionally, Forsythoside I is studied for its potential neuroprotective effects, suggesting future applications in managing neurodegenerative disorders.