Martha Stewart: Good Genes or Good Docs?

Martha Stewart's beauty has never been locked up!

Here's a then 48-year-old version (complete with blue contacts) of the farm chic star at a Hollywood movie premiere back in 1989 (left) and 25 years later -- the now brown-eyed 72-year-old media mogul at a party in NYC earlier this year (right).

What's cookin' good lookin'?