... ok.About sample, if for 10-20 grams loose tea/teabag, we would like to supply for free, ... understand.Experts believe flavonoids are the key ingredient in tea that promote health. If you have any questions ... contact us without hesitation.(black tea, green tea, oolong tea, wulong tea, Chinese tea, loose tea, loose leaf tea, loose tea bag, bulk tea, tea wholesale, tea exporter, tea supplier, tea seller)