Abstract: An active oxygen free radical scavenging agent superior in scavenging active oxygen free radicals produced in organisms is provided. The active oxygen free radical extinguishing agent includes green tea leaf extract containing epigallo catechin gallate and sunflower seed extract containing chlorogenic acid. When administrating green tea leaf extract and sunflower seed extract simultaneously as disclosed in the embodiment, the active oxygen free radical scavenging effect greatly excels the same when said two kinds of active oxygen free radical scavenging agents are separately administrated as shown in reference 2 and reference 3, or the same when rhubarb is administrated as shown in reference 4.