Green Tea Extract 1)Appearance: Green powder 2)Analysis:HPLC 3)specification:10%- ... catechins:30%----98% The main ingredients : tea polyphenols, caffeine, aromatic oil, moisture, minerals, pigment, carbohydrate, protein and amino acid, vitamin etc ... and immune system dysfunction of the skin. Topical green tea extract is exceptional in preventing the inflammation and oxidative stress associated ...