“Compared with regular oolong tea extract (TE, 0.04 μg selenium/g), Se-enriched oolong tea extract (Se-TE, 0.51 μg selenium/… anti-proliferative effect against HuH-7 cells with an IC50 of 203.1 μg/mL, mainly due to the synergistic effects of organic selenium … tea polyphenols.”