Theaflavins, Thearubigins, and EGCG are a number of the Principal antioxidants know as tea Polyphenols in oolong tea. It's responsible for the many health Rewards. Adhere to the recommended brewing Guidance over the packaging or look at my guideline on brewing ideal tasting oolong tea. Chinese Ti Kwan Yin https://www.goteaworld.com/what-does-oolong-tea-taste-like/