I've been contemplating on using a skin whitening supplement named Methatione. Apparently, it's good for the liver and the immune system as well. I'm just wondering if it has no side effects on the kidneys and the pancreas? I had pancreatitis a few years back and this is my only worry. Please help

In all honesty, if you have had any sort of health problem, then you should not be taking any kind of supplements without consulting your Doctor. Your health is far more important than any lightening and really only, they can advise you as to whether taking methathione is OK for you or could cause you possible harm.