Well, its not for me but a friend of mine. I got some Tiajuana. Not sure of the name. It comes in a box with 2 10ml bottles one is I take it bac or sterile water and the other with the powder. It is 10,000iu. I take it that means 10,000 per cc??? Anyway after he mixes it should it be refridgerated or what. Sorry I have never used it just clomid and nolvadex for me.