What is another name for antioxidants found in tea?

There are many antioxidants in tea, and they have many names, depending on how specific you want to get. The antioxidants are all a type of flavonoid, which are also classified as polyphenols. Green and white tea are richest in catechins, a class of chemicals which include epicatechin (EC), epigallocatechin (EGC), epicatechin gallate (ECG), and epigallocatechin gallate.

Black tea, oolong tea, and other oxidized teas contain catechins as well, but some of these chemicals have been converted to other antioxidants, called theaflavins and thearubigins. These antioxidants are also called tannins, and are responsible for the dark color of black tea.

Herbal tea contains other antioxidants, and generally does not contain catechins. However, it does still contain polyphenols (which are a broader class of chemicals).