var is milder on liver. Side effects var has none for me, tbol eh slight headache initially. That's about it. People claim lethargy but i dont feel it, then again i drink green tea and caffeine throughout the day so can't tell. Plus I have a trt test base all year round so I don't feel the shut down lethargy from it I guess.
I thankfully don't lose hair thank God, I am not genetically prone to it, despite heavy dht/androgens, so... but some people might get epic hair loss from var, winny, tren, etc...