Mischa shimmers on set

When Mischa Barton stepped on set looking back to her old self yesterday, we breathed a huge sigh of relief here at the Reveal office.

Her skin looks clear and healthy, her hair shines a glossy brunette, and her broad grin proves once and for all that Mischa's put the past few worrying weeks behind her.

Just last month the OC star, 23, was released from a psychiatric ward at Cedars-Sinai hospital in LA, following a rumoured three-day drug binge.

Pictures of the star looking worse for wear circulated, but she's ditched those troubled times and looks back to her former glory as she films new drama The Beautiful Life in New York, where she plays a supermodel.

Welcome back, Mischa!