NAOMI CAMPBELL GOOD GENES OR GOOD DOCS?

5/25/2015 12:47 AM PDT

Naomi Campbell: Good Genes Or Good Docs?

Naomi Campbell puts the super in supermodel.

Here's a 27-year-old version of the British babe at in Los Angeles back in 1997 (left) and 18 year later ... the activist and author -- who celebrated her 45th birthday earlier this week -- at a gala in NYC this month (right).

Mmm mmm good.

The question is...