Hello. I am a twenty-one year old who's recently begun working out seriously. I'm looking for something basic to start off with in the supplement department. Safety, quality, reputation, and well-established effectiveness are primary concerns: I'm looking for stuff backed up by large-scale clinical trials, nothing with a name as long as my arm and brightly-colored block letters on the label. Creatine seems to fit the bill: is there anything else that sounds like what I'm looking for?