Mischa Barton takes it off on the May cover of UK Cosmopolitan.

“Surely there are more important issues than if someone has cellulite?” says the actress — who faced criticism after photos surfaced last year showing that she’d gained a few pounds.

See Us’ makeovers of the year.

“And I don’t understand the point of people looking for bad things,” Barton, 23, goes on. “Why bother? I know it’s human nature to want to pick on other people, but I find it a little shallow.”

Barton tells the magazine she went from a size 12 to a size 6 or 8 after breaking up with Rooney guitarist Taylor Locke last September.

See photos of scary skinny stars.

“The only way to be happy and be a more enjoyable person to be around is to embrace what you’ve got,” she says. “Everyone has issues about their body, but I feel confident now. I’m healthy and happy.”

Check stars’ dramatic weight changes.

But that doesn’t mean Barton — who was recently cast in the CW show A Beautiful Life — is without flaws.

“I think people see celebs as having these perfect lives,” she says. “But that’s not true.”

“Instead, what counts is that the people in your life – your family and friends – think you’re a nice person,” she continues.

[Credit: Us Weekly]