Sure, Botox can help get rid of your frown lines. But can it treat the reason why you’re frowning in the first place?

Science is tantalisingly close, at least according to Jason S Reichenberg, MD, director of dermatology at the University of Texas-Austin and co-author of a study about the correlation between Botox and depression that was just published in the Journal of the American Academy of Dermatology.

“One of the theories about Botox treating depression is that it doesn’t make you smile, but it stops you from frowning,” Reichenberg tells Yahoo Beauty. It’s kind of along the lines of smiling if you’re not happy to boost your mood, or, as Reichenberg puts it, “Fake it until you make it!”

But the study, which was co-authored by his wife, psychiatrist Michelle Magid, set out to test the notion that people would simply feel better if they looked better – and very quickly debunked it.