Forsythoside B is widely used in the pharmaceutical and cosmetic industries due to its strong biological activities. It exhibits significant anti-inflammatory effects, making it valuable in formulations for treating skin irritations, acne, and other inflammatory conditions. Its antiviral properties are leveraged in research and development of treatments for respiratory viruses, including influenza and certain coronaviruses. In skincare products, Forsythoside B is incorporated for its antioxidant capacity, helping to protect the skin from oxidative stress and environmental damage. It also shows antibacterial activity, which enhances its role in topical antimicrobial agents. Due to its natural origin and low toxicity, it is preferred in green and herbal medicine formulations, especially in traditional Chinese medicine preparations aimed at clearing heat and detoxifying the body.