The 40-year-old shaved off his beard at a private post-Oscars party in Hollywood, with co-producer and friend George Clooney egging him on and wife Jennifer Garner leading the effort, Us Weekly reported.
The "good luck charm" clearly worked for Affleck as the actor went on to collect Screen Actors Guild trophy, a Golden Globe and BAFTA award this season.
Though he was famously snubbed from Oscar's best director short-list, Affleck made it up by registering the Best Picture win over eight other films for his Iran hostage drama.
"He did it himself at the restaurant," a source said. Garner reportedly brought the clippers as she and Affleck's kids were sick of the beard, the source added.