Creatine is safe for women, just keep in mind that creatine can increase bloating. In and of itself creatine does not create muscle mass, it's more of an energy thing. When I was into lifting there was a bar set up where they created all kinds of stuff and we would get some really yummy creatine shakes after the workout. I went with milk, chocolate protein mix, fruit of some sort, and a big dosage of creatine. Came out really thick and tasted really really good after a hard workout.
YMMV.
