Forsythoside H is primarily recognized for its significant biological activities, making it valuable in pharmaceutical and cosmetic applications. It exhibits strong anti-inflammatory effects by inhibiting key inflammatory pathways, which makes it useful in developing treatments for inflammatory diseases such as dermatitis, arthritis, and respiratory conditions. Its potent antioxidant properties help neutralize free radicals, supporting its use in anti-aging skincare formulations to protect against oxidative stress and environmental damage. Additionally, Forsythoside H demonstrates antiviral activity, particularly against certain respiratory viruses, suggesting potential in antiviral drug development. It also shows antibacterial effects, contributing to its inclusion in topical formulations for skin protection and wound healing. Due to its natural origin and low toxicity, it is increasingly explored in herbal medicine and functional cosmetics as a safe, bioactive ingredient.