never heard of enantato 350, but i've experienced QV Enantat250. You should definitely take at LEAST two mL a week to make it 500 weekly, because even that doesn't do much. A friend of mine is taking 1000 a week. I imagine the 250 would barely be enough to tell a difference at all. A lot of people use it, but it's pretty weak, like most of the stuff from Mexico. Just my experiences.