Denzel Washington-- Good Genes Or Good Docs?!

Denzel Washington's look has the world wondering ... is it always "Training Day"?!

Here is 30-year-old Denzel from his days on "St. Elsewhere" looking professional and fresh -- playing the iconic Dr. Philip Chandler back in 1985 (left).

And, 37 years later the actor recently flashed his bright white smile while attending a celeb-packed event earlier this year (right). With two Oscar wins under his belt, he may just clinch his 3rd tonight. Denzel is nominated for his lead role in "The Tragedy of Macbeth" -- starring as Macbeth himself.

The actor may have ditched the stache, but his good looks continue to grow.

The question is ...