Zachary Quinto -- Good Genes or Good Docs?

Zachary Quinto's good looks are in a universe of their own!

Here's the 28-year-old version of the '24' actor at a fashion show back in 2005 (left) and 13 years later ... the 'Star Trek' star -- who just turned 41 -- in New York City earlier this week (right).

"Live long and prosper!"

The question is ...