It IS a steroid. There are MANY legal steroids. M-Drol, P-plex, H-Drol, T-Roid, Havoc, just to name a few. That is why you really need to research what your getting BEFORE you buy it. This is from first hand experience. I bought a bottle of Superdrol when I first started lifting not knowing what it was. I was sick as hell in 3 days because I wasn't eating right. (it loves carbs.. and I wasn't eating near enough of them) If your not sure, and you are 21 years old or older, go into the steroid section and ask, or at the very least, use the search function.
Now your question was is Epi safe and effective. My answer would be yes, as long as you know what you are doing. I would say the next question is "Should I take it" my guess would be no. It doesn't sound like you have the experience that one should have before starting steroids. But I am not a shining example of having done that.