any product sold over the counter in the U.S is not gonna give you any dramatic gains. that andro that Mark McGwire was taking won't give you any gains either. he was juicing and pointed the fingers at the andro because the media jumped on him for getting way too big over the stretch of his career.
creatine, arguably, is the most effective supplement that you can buy over the counter and there are still some who believe it doesn't do .
now, i'm not saying that there aren't good products out there.
meal replacements, protein powders, glutmaine, r-alpha lipoic acid, multi vitamins, etc..etc.. are really good for you but if you're looking for a natural way to get "steroid like" results... forget about it!!!
train hard and eat healthy dude.