Isoforsythiaside is a natural product isolated and purified from the herbs of Forsythia suspensa with antioxidant and antibacterial activity.

Phillygenin is an active ingredient from Forsythia with many medicinal properties, such as antioxidant, reducing blood lipid, inhibition of low density lipoprotein oxidation .

Forsythoside B is a natural product isolated and purified from the fruits of Forsythia suspensa which inhibits inflammatory response,and has antioxidant properties with potent neuroprotective effects with a favorable therapeutic time-window, reduce of cerebral ischemia and reperfusion injury degree, attenuating blood-brain barrier (BBB) breakdown, and can rescue cardiac function from I/R injury.

Forsythoside A, a natural product isolated and purified from the fruits of Forsythia suspensa, has anticomplementary, antimicrobial, antiinflammatory and antiendotoxin activities.

Epirengynic acid is a natural product isolated and purified from plants.

Cedrusin is a natural product isolated and purified from the herbs of Forsythia suspensa with a cytotoxic effect on A375 and HeLa cells.