Thiamine (vitamin B-1) is a vital nutrient for those who drink as alcohol metabolism rapidly burns through available thiamine very quickly. When skid-row alcoholics are brought into hospital, the first thing ordered is a "banana bag" of IV vitamin-B supplements. It is called a banana bag as the vitamins in the IV turn the fluid in the bag yellow.
As many people who seek out "liver pills" do so because they drink and are worried about their liver, one would expect to see B-1 as one of the ingredients. Simple "vitamin B-Complex" pills will do you just as much good as expensive liver pills, so this might be a better way to go.
CHOLINE is also very important to liver health (especially if you drink), and LECITHIN (phosphatidylcholine) is the best source of choline for liver health. Eggs have more lecithin than most any other food you might eat, thus eggs are perhaps your liver's favorite food.
If you don't care for eggs, a simple and cheap Lecithin supplement (in addition to vitamin B-Complex) will go a long way towards keeping your liver happy.
Hope this helps.