Tyra Banks Good Genes or Good Docs?

8/4/2013 12:43 AM PDT

Tyra Banks: Good Genes or Good Docs?

Tyra Banks is a SUPER model.

Here's the natural looking 21-year-old smizing for a photo outside of a NYC comedy club back in 1994 (left) -- and 19 years later the 39-year-old model turned TV host serving face on a late night show earlier this week (right).

The question is...