Procyanidin B5 is an antioxidant derived from hawthorn with antimicrobial and antitumor activity and can be used to study infections.

8-Prenylkaempferol is an effective agent for attenuating pro-inflammatory NO induction, it may be an anti-inflammatory agent for suppressing influenza A virus-induced RANTES production acts by blocking PI3K-mediated transcriptional activation of NF-κB and IRF-3 and in part by interfering with IκB degradation which subsequently decreases NF-κB translocation.

透明质酸酶是一种天然存在的酶，可通过糖苷键的裂解来解聚透明质酸，并已用于眼科手术。