A tea product includes green tea extract and rooibos tea extract, and the ratio of two kinds of polyphenols from the green tea extract and the rooibos tea extract respectively is ranging from 2:1 to 6:1. Accordingly, uptake of the tea product can improve the antioxidant capacity of the organisms, thereby deferring aging process.一種茶產物,其包括綠茶萃取物及如意波斯茶萃取物。其中,綠茶萃取物的多酚及如意波斯茶萃取物的多酚的比例為2:1~6:1。於此,攝取此茶產物可提高生物體的抗氧化能力,進而延緩老化。