i agree that most supplements do more harm then help your liver. if u want to protect your liver make sure you DO NOT DRINK ON EMPTY STOMACH.
also if u are hard core chiongster, can try to eat at least 4 activated carbon tablets 30mins before drinking. those big black pills prescribed for lao sai. Have to chew them then swallow. Bad thing is the black powder residue on your teeth. Go brush or rinse or else looks funny

Some friends tell me butter also helps. Take butter maybe 2 hours before drinking. Haven't tried it though. My friends tell me to stop if I start throwing up and mao already. But some friends tell me that once you puke, can still drink some more. Dunno which is more true.