New York, March 2 -- Cara Delevingne is reassessing her relationship with social media, admitting that while she hasn't stepped away entirely, she is increasingly wary of the psychological toll it can take.

"It was one of the most inspiring, touching, just wonderful evenings that I really didn't expect," she says. "I know how incredible L'Oreal is at supporting causes, especially causes that I care about, but this one in particular really stuck with me. I think I cried, laughed and had some amazing conversations at dinner.

Delevingne's reflections coincide with her renewed collaboration with L'Oreal Paris in support of its Women of Worth initiative ahead of International Women's Day. Delevingne, a longtime ambassador for the beauty brand,...