Rob Lowe sho iz pretty.
Here's the 21-year-old Brat Pack member back in 1985 (left) -- and 24 years later, the 45-year-old version at the Emmys last week (right).
He must really have "Youngblood."
Good Genes or Good Docs?
9/28/2009 1:45 AM PDT BY TMZ STAFF
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