One would think the details of Martha Stewart’s skin-care routine would be classified information. The mogul, who turns 83 today, has always awed fans with just how smooth, glowing, and—most importantly—healthy her skin is as she ages. While nothing is perfect, you could argue that Stewart’s skin may be the closest thing to it. And something that good can’t solely be attained through a simple skin-care routine and a few aesthetic treatments, right?