Well it could heal your skin cells but my point was that 'age' doesn't kill you, things like organ failure or cancer do. I'm not suggesting that TLR only used gold, he obviously used Atium, but you could probably live a good 130 years, maybe longer if you stuck with gold.
Also I disagree with your point on birth defects, it's all about your cognitive perception of yourself, if you didn't view that as being your natural state then it would probably heal.