Jon grabbed the stone and started wishing. "I wish the label was of my original self right before I wished up these pills." He waited for the stone to glow, then waited some more. But it never did. "What the hell? Why isn't this working?"
He decided to make another wish to find out. "I wish I knew why my last wish wasn't granted." The stone glowed and he got his answer. He only wished that he could change the label on a second wish, not with any wishes beyond that. So the label that was on the bottle was permanent. He could only look like he did right now, or the hot Asian chick in the picture.