Its a GNC Creatine Monohydrate. I asked them at the store if they had any scoops or anything to measure 5g, but they didn't. I guess I'll use a teaspoon. It says to use a heaping teaspoon (5g) ... would using a heaping 1/2 teaspoon be considered 2.5? LOL sorry for these retarded questions ... just want to take 2.5 pre and 2.5 post.