If you are determined not to do the heavier duty liver cleanse/detox, you could opt for milder liver cleanse products or protocols and do at least once per month for a few months and then once every two to three months thereafter and use that, along with a healthy diet and lifestyle and as many of the following as you can to help cleanse, protect and regenerate your liver:
Coffee enemas - help open the bile ducts so bile and toxins can be released properly.
Coconut oil - a wonderful item everyone should take, it helps maintain a good bile flow.
Beetroot juice - is also good for the liver and bile flow.
Turmeric - helps regulate bile flow and is also a cancer fighter.
Milk thistle - is a must as it helps protect the liver and actually regenerate it
Alpha lipoic acid - another liver supplement that also helps fight cancer
Selenium - a third liver supplement that is good against cancer too.
In the Berkson Clinical Study, three women who were facing liver transplants or chemo with interferon (a horrendous treatment with very low success rates for hepatitis and cirhossis), took milk thistle, alpha lipoic acid and selenium, modified their diets a bit and got some daily exercise and restored their liver functions to normal.
I think iodine is always important for just about every area of health, including the liver (and it works well with selenium).
You might consider trying Inositol/IP6 for the benign tumors. It works well on many tumors.
Digestive enzymes also might help in dissolving the tumors.
Tony